From: Linus Torvalds Date: Sat, 29 Oct 2016 17:57:40 +0000 (-0700) Subject: Merge tag 'driver-core-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git... X-Git-Tag: v4.9-rc3~5 X-Git-Url: http://git.cascardo.info/?p=cascardo%2Flinux.git;a=commitdiff_plain;h=c636e176d8e5afe2f3b3e3f1de33ec13f1cee308;hp=248ff02165437864146d6fbd2d99b2359c3723e6 Merge tag 'driver-core-4.9-rc3' of git://git./linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are two small driver core / kernfs fixes for 4.9-rc3. One makes the Kconfig entry for DEBUG_TEST_DRIVER_REMOVE a bit more explicit that this is a crazy thing to enable for a distro kernel (thanks for trying Fedora!), the other resolves an issue with vim opening kernfs files (sysfs, configfs, etc.) Both have been in linux-next with no reported issues" * tag 'driver-core-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: driver core: Make Kconfig text for DEBUG_TEST_DRIVER_REMOVE stronger kernfs: Add noop_fsync to supported kernfs_file_fops --- diff --git a/CREDITS b/CREDITS index 513aaa3546bf..837367624e45 100644 --- a/CREDITS +++ b/CREDITS @@ -1864,10 +1864,11 @@ S: The Netherlands N: Martin Kepplinger E: martink@posteo.de -E: martin.kepplinger@theobroma-systems.com +E: martin.kepplinger@ginzinger.com W: http://www.martinkepplinger.com D: mma8452 accelerators iio driver -D: Kernel cleanups +D: pegasus_notetaker input driver +D: Kernel fixes and cleanups S: Garnisonstraße 26 S: 4020 Linz S: Austria diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt index e5b6497116f4..c75b64a85859 100644 --- a/Documentation/device-mapper/dm-raid.txt +++ b/Documentation/device-mapper/dm-raid.txt @@ -309,3 +309,4 @@ Version History with a reshape in progress. 1.9.0 Add support for RAID level takeover/reshape/region size and set size reduction. +1.9.1 Fix activation of existing RAID 4/10 mapped devices diff --git a/Documentation/devicetree/bindings/clock/uniphier-clock.txt b/Documentation/devicetree/bindings/clock/uniphier-clock.txt index c7179d3b5c33..812163060fa3 100644 --- a/Documentation/devicetree/bindings/clock/uniphier-clock.txt +++ b/Documentation/devicetree/bindings/clock/uniphier-clock.txt @@ -24,7 +24,7 @@ Example: reg = <0x61840000 0x4000>; clock { - compatible = "socionext,uniphier-ld20-clock"; + compatible = "socionext,uniphier-ld11-clock"; #clock-cells = <1>; }; @@ -43,8 +43,8 @@ Provided clocks: 21: USB3 ch1 PHY1 -Media I/O (MIO) clock ---------------------- +Media I/O (MIO) clock, SD clock +------------------------------- Required properties: - compatible: should be one of the following: @@ -52,10 +52,10 @@ Required properties: "socionext,uniphier-ld4-mio-clock" - for LD4 SoC. "socionext,uniphier-pro4-mio-clock" - for Pro4 SoC. "socionext,uniphier-sld8-mio-clock" - for sLD8 SoC. - "socionext,uniphier-pro5-mio-clock" - for Pro5 SoC. - "socionext,uniphier-pxs2-mio-clock" - for PXs2/LD6b SoC. + "socionext,uniphier-pro5-sd-clock" - for Pro5 SoC. + "socionext,uniphier-pxs2-sd-clock" - for PXs2/LD6b SoC. "socionext,uniphier-ld11-mio-clock" - for LD11 SoC. - "socionext,uniphier-ld20-mio-clock" - for LD20 SoC. + "socionext,uniphier-ld20-sd-clock" - for LD20 SoC. - #clock-cells: should be 1. Example: @@ -66,7 +66,7 @@ Example: reg = <0x59810000 0x800>; clock { - compatible = "socionext,uniphier-ld20-mio-clock"; + compatible = "socionext,uniphier-ld11-mio-clock"; #clock-cells = <1>; }; @@ -112,7 +112,7 @@ Example: reg = <0x59820000 0x200>; clock { - compatible = "socionext,uniphier-ld20-peri-clock"; + compatible = "socionext,uniphier-ld11-peri-clock"; #clock-cells = <1>; }; diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.txt b/Documentation/devicetree/bindings/serial/cdns,uart.txt index a3eb154c32ca..227bb770b027 100644 --- a/Documentation/devicetree/bindings/serial/cdns,uart.txt +++ b/Documentation/devicetree/bindings/serial/cdns,uart.txt @@ -1,7 +1,9 @@ Binding for Cadence UART Controller Required properties: -- compatible : should be "cdns,uart-r1p8", or "xlnx,xuartps" +- compatible : + Use "xlnx,xuartps","cdns,uart-r1p8" for Zynq-7xxx SoC. + Use "xlnx,zynqmp-uart","cdns,uart-r1p12" for Zynq Ultrascale+ MPSoC. - reg: Should contain UART controller registers location and length. - interrupts: Should contain UART controller interrupts. - clocks: Must contain phandles to the UART clocks diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt index 1e4000d83aee..8d27d1a603e7 100644 --- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt @@ -9,6 +9,14 @@ Required properties: - "renesas,scifb-r8a73a4" for R8A73A4 (R-Mobile APE6) SCIFB compatible UART. - "renesas,scifa-r8a7740" for R8A7740 (R-Mobile A1) SCIFA compatible UART. - "renesas,scifb-r8a7740" for R8A7740 (R-Mobile A1) SCIFB compatible UART. + - "renesas,scif-r8a7743" for R8A7743 (RZ/G1M) SCIF compatible UART. + - "renesas,scifa-r8a7743" for R8A7743 (RZ/G1M) SCIFA compatible UART. + - "renesas,scifb-r8a7743" for R8A7743 (RZ/G1M) SCIFB compatible UART. + - "renesas,hscif-r8a7743" for R8A7743 (RZ/G1M) HSCIF compatible UART. + - "renesas,scif-r8a7745" for R8A7745 (RZ/G1E) SCIF compatible UART. + - "renesas,scifa-r8a7745" for R8A7745 (RZ/G1E) SCIFA compatible UART. + - "renesas,scifb-r8a7745" for R8A7745 (RZ/G1E) SCIFB compatible UART. + - "renesas,hscif-r8a7745" for R8A7745 (RZ/G1E) HSCIF compatible UART. - "renesas,scif-r8a7778" for R8A7778 (R-Car M1) SCIF compatible UART. - "renesas,scif-r8a7779" for R8A7779 (R-Car H1) SCIF compatible UART. - "renesas,scif-r8a7790" for R8A7790 (R-Car H2) SCIF compatible UART. diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt index 455f2c310a1b..2c30a5479069 100644 --- a/Documentation/devicetree/bindings/usb/dwc2.txt +++ b/Documentation/devicetree/bindings/usb/dwc2.txt @@ -28,10 +28,7 @@ Refer to phy/phy-bindings.txt for generic phy consumer properties - g-use-dma: enable dma usage in gadget driver. - g-rx-fifo-size: size of rx fifo size in gadget mode. - g-np-tx-fifo-size: size of non-periodic tx fifo size in gadget mode. - -Deprecated properties: -- g-tx-fifo-size: size of periodic tx fifo per endpoint (except ep0) - in gadget mode. +- g-tx-fifo-size: size of periodic tx fifo per endpoint (except ep0) in gadget mode. Example: diff --git a/Documentation/gpio/board.txt b/Documentation/gpio/board.txt index 40884c4fe40c..a0f61898d493 100644 --- a/Documentation/gpio/board.txt +++ b/Documentation/gpio/board.txt @@ -6,7 +6,7 @@ Note that it only applies to the new descriptor-based interface. For a description of the deprecated integer-based GPIO interface please refer to gpio-legacy.txt (actually, there is no real mapping possible with the old interface; you just fetch an integer from somewhere and request the -corresponding GPIO. +corresponding GPIO). All platforms can enable the GPIO library, but if the platform strictly requires GPIO functionality to be present, it needs to select GPIOLIB from its @@ -162,6 +162,9 @@ The driver controlling "foo.0" will then be able to obtain its GPIOs as follows: Since the "led" GPIOs are mapped as active-high, this example will switch their signals to 1, i.e. enabling the LEDs. And for the "power" GPIO, which is mapped -as active-low, its actual signal will be 0 after this code. Contrary to the legacy -integer GPIO interface, the active-low property is handled during mapping and is -thus transparent to GPIO consumers. +as active-low, its actual signal will be 0 after this code. Contrary to the +legacy integer GPIO interface, the active-low property is handled during +mapping and is thus transparent to GPIO consumers. + +A set of functions such as gpiod_set_value() is available to work with +the new descriptor-oriented interface. diff --git a/MAINTAINERS b/MAINTAINERS index c44795306342..f30b8ea700fd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8100,6 +8100,7 @@ S: Maintained F: drivers/media/dvb-frontends/mn88473* MODULE SUPPORT +M: Jessica Yu M: Rusty Russell S: Maintained F: include/linux/module.h diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index ecd12379e2cd..bd204bfa29ed 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -41,6 +41,8 @@ config ARC select PERF_USE_VMALLOC select HAVE_DEBUG_STACKOVERFLOW select HAVE_GENERIC_DMA_COHERENT + select HAVE_KERNEL_GZIP + select HAVE_KERNEL_LZMA config MIGHT_HAVE_PCI bool @@ -186,14 +188,6 @@ if SMP config ARC_HAS_COH_CACHES def_bool n -config ARC_MCIP - bool "ARConnect Multicore IP (MCIP) Support " - depends on ISA_ARCV2 - help - This IP block enables SMP in ARC-HS38 cores. - It provides for cross-core interrupts, multi-core debug - hardware semaphores, shared memory,.... - config NR_CPUS int "Maximum number of CPUs (2-4096)" range 2 4096 @@ -211,6 +205,15 @@ config ARC_SMP_HALT_ON_RESET endif #SMP +config ARC_MCIP + bool "ARConnect Multicore IP (MCIP) Support " + depends on ISA_ARCV2 + default y if SMP + help + This IP block enables SMP in ARC-HS38 cores. + It provides for cross-core interrupts, multi-core debug + hardware semaphores, shared memory,.... + menuconfig ARC_CACHE bool "Enable Cache Support" default y @@ -537,14 +540,6 @@ config ARC_DBG_TLB_PARANOIA bool "Paranoia Checks in Low Level TLB Handlers" default n -config ARC_DBG_TLB_MISS_COUNT - bool "Profile TLB Misses" - default n - select DEBUG_FS - help - Counts number of I and D TLB Misses and exports them via Debugfs - The counters can be cleared via Debugfs as well - endif config ARC_UBOOT_SUPPORT diff --git a/arch/arc/Makefile b/arch/arc/Makefile index aa82d13d4213..864adad52280 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -50,9 +50,6 @@ atleast_gcc44 := $(call cc-ifversion, -ge, 0404, y) cflags-$(atleast_gcc44) += -fsection-anchors -cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock -cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape - ifdef CONFIG_ISA_ARCV2 ifndef CONFIG_ARC_HAS_LL64 diff --git a/arch/arc/boot/Makefile b/arch/arc/boot/Makefile index e597cb34c16a..f94cf151e06a 100644 --- a/arch/arc/boot/Makefile +++ b/arch/arc/boot/Makefile @@ -14,9 +14,15 @@ UIMAGE_ENTRYADDR = $(LINUX_START_TEXT) suffix-y := bin suffix-$(CONFIG_KERNEL_GZIP) := gz +suffix-$(CONFIG_KERNEL_LZMA) := lzma -targets += uImage uImage.bin uImage.gz -extra-y += vmlinux.bin vmlinux.bin.gz +targets += uImage +targets += uImage.bin +targets += uImage.gz +targets += uImage.lzma +extra-y += vmlinux.bin +extra-y += vmlinux.bin.gz +extra-y += vmlinux.bin.lzma $(obj)/vmlinux.bin: vmlinux FORCE $(call if_changed,objcopy) @@ -24,12 +30,18 @@ $(obj)/vmlinux.bin: vmlinux FORCE $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE $(call if_changed,gzip) +$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE + $(call if_changed,lzma) + $(obj)/uImage.bin: $(obj)/vmlinux.bin FORCE $(call if_changed,uimage,none) $(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE $(call if_changed,uimage,gzip) +$(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma FORCE + $(call if_changed,uimage,lzma) + $(obj)/uImage: $(obj)/uImage.$(suffix-y) @ln -sf $(notdir $<) $@ @echo ' Image $@ is ready' diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h index db25c65155cb..7f3f9f63708c 100644 --- a/arch/arc/include/asm/arcregs.h +++ b/arch/arc/include/asm/arcregs.h @@ -349,10 +349,11 @@ struct cpuinfo_arc { struct cpuinfo_arc_bpu bpu; struct bcr_identity core; struct bcr_isa isa; + const char *details, *name; unsigned int vec_base; struct cpuinfo_arc_ccm iccm, dccm; struct { - unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, pad1:3, + unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2, fpu_sp:1, fpu_dp:1, pad2:6, debug:1, ap:1, smart:1, rtt:1, pad3:4, timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4; diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h index fb781e34f322..b3410ff6a62d 100644 --- a/arch/arc/include/asm/cache.h +++ b/arch/arc/include/asm/cache.h @@ -53,7 +53,7 @@ extern void arc_cache_init(void); extern char *arc_cache_mumbojumbo(int cpu_id, char *buf, int len); extern void read_decode_cache_bcr(void); -extern int ioc_exists; +extern int ioc_enable; extern unsigned long perip_base, perip_end; #endif /* !__ASSEMBLY__ */ diff --git a/arch/arc/include/asm/elf.h b/arch/arc/include/asm/elf.h index 7096f97a1434..aa2d6da9d187 100644 --- a/arch/arc/include/asm/elf.h +++ b/arch/arc/include/asm/elf.h @@ -54,7 +54,7 @@ extern int elf_check_arch(const struct elf32_hdr *); * the loader. We need to make sure that it is out of the way of the program * that it will "exec", and that there is sufficient room for the brk. */ -#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) +#define ELF_ET_DYN_BASE (2UL * TASK_SIZE / 3) /* * When the program starts, a1 contains a pointer to a function to be diff --git a/arch/arc/include/asm/mcip.h b/arch/arc/include/asm/mcip.h index 847e3bbe387f..c8fbe4114bad 100644 --- a/arch/arc/include/asm/mcip.h +++ b/arch/arc/include/asm/mcip.h @@ -55,6 +55,22 @@ struct mcip_cmd { #define IDU_M_DISTRI_DEST 0x2 }; +struct mcip_bcr { +#ifdef CONFIG_CPU_BIG_ENDIAN + unsigned int pad3:8, + idu:1, llm:1, num_cores:6, + iocoh:1, gfrc:1, dbg:1, pad2:1, + msg:1, sem:1, ipi:1, pad:1, + ver:8; +#else + unsigned int ver:8, + pad:1, ipi:1, sem:1, msg:1, + pad2:1, dbg:1, gfrc:1, iocoh:1, + num_cores:6, llm:1, idu:1, + pad3:8; +#endif +}; + /* * MCIP programming model * diff --git a/arch/arc/include/asm/module.h b/arch/arc/include/asm/module.h index 518222bb3f8e..6e91d8b339c3 100644 --- a/arch/arc/include/asm/module.h +++ b/arch/arc/include/asm/module.h @@ -18,6 +18,7 @@ struct mod_arch_specific { void *unw_info; int unw_sec_idx; + const char *secstr; }; #endif diff --git a/arch/arc/include/asm/setup.h b/arch/arc/include/asm/setup.h index 48b37c693db3..cb954cdab070 100644 --- a/arch/arc/include/asm/setup.h +++ b/arch/arc/include/asm/setup.h @@ -27,11 +27,6 @@ struct id_to_str { const char *str; }; -struct cpuinfo_data { - struct id_to_str info; - int up_range; -}; - extern int root_mountflags, end_mem; void setup_processor(void); @@ -43,5 +38,6 @@ void __init setup_arch_memory(void); #define IS_USED_RUN(v) ((v) ? "" : "(not used) ") #define IS_USED_CFG(cfg) IS_USED_RUN(IS_ENABLED(cfg)) #define IS_AVAIL2(v, s, cfg) IS_AVAIL1(v, s), IS_AVAIL1(v, IS_USED_CFG(cfg)) +#define IS_AVAIL3(v, v2, s) IS_AVAIL1(v, s), IS_AVAIL1(v, IS_DISABLED_RUN(v2)) #endif /* __ASMARC_SETUP_H */ diff --git a/arch/arc/include/asm/syscalls.h b/arch/arc/include/asm/syscalls.h index e56f9fcc5581..772b67ca56e7 100644 --- a/arch/arc/include/asm/syscalls.h +++ b/arch/arc/include/asm/syscalls.h @@ -17,6 +17,7 @@ int sys_clone_wrapper(int, int, int, int, int); int sys_cacheflush(uint32_t, uint32_t uint32_t); int sys_arc_settls(void *); int sys_arc_gettls(void); +int sys_arc_usr_cmpxchg(int *, int, int); #include diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h index 41fa2ec9e02c..9a34136d84b2 100644 --- a/arch/arc/include/uapi/asm/unistd.h +++ b/arch/arc/include/uapi/asm/unistd.h @@ -27,18 +27,19 @@ #define NR_syscalls __NR_syscalls +/* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */ +#define __NR_sysfs (__NR_arch_specific_syscall + 3) + /* ARC specific syscall */ #define __NR_cacheflush (__NR_arch_specific_syscall + 0) #define __NR_arc_settls (__NR_arch_specific_syscall + 1) #define __NR_arc_gettls (__NR_arch_specific_syscall + 2) +#define __NR_arc_usr_cmpxchg (__NR_arch_specific_syscall + 4) __SYSCALL(__NR_cacheflush, sys_cacheflush) __SYSCALL(__NR_arc_settls, sys_arc_settls) __SYSCALL(__NR_arc_gettls, sys_arc_gettls) - - -/* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */ -#define __NR_sysfs (__NR_arch_specific_syscall + 3) +__SYSCALL(__NR_arc_usr_cmpxchg, sys_arc_usr_cmpxchg) __SYSCALL(__NR_sysfs, sys_sysfs) #undef __SYSCALL diff --git a/arch/arc/kernel/mcip.c b/arch/arc/kernel/mcip.c index 72f9179b1a24..c424d5abc318 100644 --- a/arch/arc/kernel/mcip.c +++ b/arch/arc/kernel/mcip.c @@ -15,11 +15,12 @@ #include #include -static char smp_cpuinfo_buf[128]; -static int idu_detected; - static DEFINE_RAW_SPINLOCK(mcip_lock); +#ifdef CONFIG_SMP + +static char smp_cpuinfo_buf[128]; + static void mcip_setup_per_cpu(int cpu) { smp_ipi_irq_setup(cpu, IPI_IRQ); @@ -86,21 +87,7 @@ static void mcip_ipi_clear(int irq) static void mcip_probe_n_setup(void) { - struct mcip_bcr { -#ifdef CONFIG_CPU_BIG_ENDIAN - unsigned int pad3:8, - idu:1, llm:1, num_cores:6, - iocoh:1, gfrc:1, dbg:1, pad2:1, - msg:1, sem:1, ipi:1, pad:1, - ver:8; -#else - unsigned int ver:8, - pad:1, ipi:1, sem:1, msg:1, - pad2:1, dbg:1, gfrc:1, iocoh:1, - num_cores:6, llm:1, idu:1, - pad3:8; -#endif - } mp; + struct mcip_bcr mp; READ_BCR(ARC_REG_MCIP_BCR, mp); @@ -114,7 +101,6 @@ static void mcip_probe_n_setup(void) IS_AVAIL1(mp.gfrc, "GFRC")); cpuinfo_arc700[0].extn.gfrc = mp.gfrc; - idu_detected = mp.idu; if (mp.dbg) { __mcip_cmd_data(CMD_DEBUG_SET_SELECT, 0, 0xf); @@ -130,6 +116,8 @@ struct plat_smp_ops plat_smp_ops = { .ipi_clear = mcip_ipi_clear, }; +#endif + /*************************************************************************** * ARCv2 Interrupt Distribution Unit (IDU) * @@ -295,8 +283,11 @@ idu_of_init(struct device_node *intc, struct device_node *parent) /* Read IDU BCR to confirm nr_irqs */ int nr_irqs = of_irq_count(intc); int i, irq; + struct mcip_bcr mp; + + READ_BCR(ARC_REG_MCIP_BCR, mp); - if (!idu_detected) + if (!mp.idu) panic("IDU not detected, but DeviceTree using it"); pr_info("MCIP: IDU referenced from Devicetree %d irqs\n", nr_irqs); diff --git a/arch/arc/kernel/module.c b/arch/arc/kernel/module.c index 9a2849756022..42e964db2967 100644 --- a/arch/arc/kernel/module.c +++ b/arch/arc/kernel/module.c @@ -30,17 +30,9 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, char *secstr, struct module *mod) { #ifdef CONFIG_ARC_DW2_UNWIND - int i; - mod->arch.unw_sec_idx = 0; mod->arch.unw_info = NULL; - - for (i = 1; i < hdr->e_shnum; i++) { - if (strcmp(secstr+sechdrs[i].sh_name, ".eh_frame") == 0) { - mod->arch.unw_sec_idx = i; - break; - } - } + mod->arch.secstr = secstr; #endif return 0; } @@ -59,29 +51,33 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, unsigned int relsec, /* sec index for relo sec */ struct module *module) { - int i, n; + int i, n, relo_type; Elf32_Rela *rel_entry = (void *)sechdrs[relsec].sh_addr; Elf32_Sym *sym_entry, *sym_sec; - Elf32_Addr relocation; - Elf32_Addr location; - Elf32_Addr sec_to_patch; - int relo_type; - - sec_to_patch = sechdrs[sechdrs[relsec].sh_info].sh_addr; + Elf32_Addr relocation, location, tgt_addr; + unsigned int tgtsec; + + /* + * @relsec has relocations e.g. .rela.init.text + * @tgtsec is section to patch e.g. .init.text + */ + tgtsec = sechdrs[relsec].sh_info; + tgt_addr = sechdrs[tgtsec].sh_addr; sym_sec = (Elf32_Sym *) sechdrs[symindex].sh_addr; n = sechdrs[relsec].sh_size / sizeof(*rel_entry); - pr_debug("\n========== Module Sym reloc ===========================\n"); - pr_debug("Section to fixup %x\n", sec_to_patch); + pr_debug("\nSection to fixup %s @%x\n", + module->arch.secstr + sechdrs[tgtsec].sh_name, tgt_addr); pr_debug("=========================================================\n"); - pr_debug("rela->r_off | rela->addend | sym->st_value | ADDR | VALUE\n"); + pr_debug("r_off\tr_add\tst_value ADDRESS VALUE\n"); pr_debug("=========================================================\n"); /* Loop thru entries in relocation section */ for (i = 0; i < n; i++) { + const char *s; /* This is where to make the change */ - location = sec_to_patch + rel_entry[i].r_offset; + location = tgt_addr + rel_entry[i].r_offset; /* This is the symbol it is referring to. Note that all undefined symbols have been resolved. */ @@ -89,10 +85,15 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, relocation = sym_entry->st_value + rel_entry[i].r_addend; - pr_debug("\t%x\t\t%x\t\t%x %x %x [%s]\n", - rel_entry[i].r_offset, rel_entry[i].r_addend, - sym_entry->st_value, location, relocation, - strtab + sym_entry->st_name); + if (sym_entry->st_name == 0 && ELF_ST_TYPE (sym_entry->st_info) == STT_SECTION) { + s = module->arch.secstr + sechdrs[sym_entry->st_shndx].sh_name; + } else { + s = strtab + sym_entry->st_name; + } + + pr_debug(" %x\t%x\t%x %x %x [%s]\n", + rel_entry[i].r_offset, rel_entry[i].r_addend, + sym_entry->st_value, location, relocation, s); /* This assumes modules are built with -mlong-calls * so any branches/jumps are absolute 32 bit jmps @@ -111,6 +112,10 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, goto relo_err; } + + if (strcmp(module->arch.secstr+sechdrs[tgtsec].sh_name, ".eh_frame") == 0) + module->arch.unw_sec_idx = tgtsec; + return 0; relo_err: diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c index be1972bd2729..59aa43cb146e 100644 --- a/arch/arc/kernel/process.c +++ b/arch/arc/kernel/process.c @@ -41,6 +41,39 @@ SYSCALL_DEFINE0(arc_gettls) return task_thread_info(current)->thr_ptr; } +SYSCALL_DEFINE3(arc_usr_cmpxchg, int *, uaddr, int, expected, int, new) +{ + int uval; + int ret; + + /* + * This is only for old cores lacking LLOCK/SCOND, which by defintion + * can't possibly be SMP. Thus doesn't need to be SMP safe. + * And this also helps reduce the overhead for serializing in + * the UP case + */ + WARN_ON_ONCE(IS_ENABLED(CONFIG_SMP)); + + if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) + return -EFAULT; + + preempt_disable(); + + ret = __get_user(uval, uaddr); + if (ret) + goto done; + + if (uval != expected) + ret = -EAGAIN; + else + ret = __put_user(new, uaddr); + +done: + preempt_enable(); + + return ret; +} + void arch_cpu_idle(void) { /* sleep, but enable all interrupts before committing */ diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 3df7f9c72f42..0385df77a697 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -40,6 +40,29 @@ struct task_struct *_current_task[NR_CPUS]; /* For stack switching */ struct cpuinfo_arc cpuinfo_arc700[NR_CPUS]; +static const struct id_to_str arc_cpu_rel[] = { +#ifdef CONFIG_ISA_ARCOMPACT + { 0x34, "R4.10"}, + { 0x35, "R4.11"}, +#else + { 0x51, "R2.0" }, + { 0x52, "R2.1" }, + { 0x53, "R3.0" }, +#endif + { 0x00, NULL } +}; + +static const struct id_to_str arc_cpu_nm[] = { +#ifdef CONFIG_ISA_ARCOMPACT + { 0x20, "ARC 600" }, + { 0x30, "ARC 770" }, /* 750 identified seperately */ +#else + { 0x40, "ARC EM" }, + { 0x50, "ARC HS38" }, +#endif + { 0x00, "Unknown" } +}; + static void read_decode_ccm_bcr(struct cpuinfo_arc *cpu) { if (is_isa_arcompact()) { @@ -92,11 +115,26 @@ static void read_arc_build_cfg_regs(void) struct bcr_timer timer; struct bcr_generic bcr; struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()]; + const struct id_to_str *tbl; + FIX_PTR(cpu); READ_BCR(AUX_IDENTITY, cpu->core); READ_BCR(ARC_REG_ISA_CFG_BCR, cpu->isa); + for (tbl = &arc_cpu_rel[0]; tbl->id != 0; tbl++) { + if (cpu->core.family == tbl->id) { + cpu->details = tbl->str; + break; + } + } + + for (tbl = &arc_cpu_nm[0]; tbl->id != 0; tbl++) { + if ((cpu->core.family & 0xF0) == tbl->id) + break; + } + cpu->name = tbl->str; + READ_BCR(ARC_REG_TIMERS_BCR, timer); cpu->extn.timer0 = timer.t0; cpu->extn.timer1 = timer.t1; @@ -111,6 +149,9 @@ static void read_arc_build_cfg_regs(void) cpu->extn.swap = read_aux_reg(ARC_REG_SWAP_BCR) ? 1 : 0; /* 1,3 */ cpu->extn.crc = read_aux_reg(ARC_REG_CRC_BCR) ? 1 : 0; cpu->extn.minmax = read_aux_reg(ARC_REG_MIXMAX_BCR) > 1 ? 1 : 0; /* 2 */ + cpu->extn.swape = (cpu->core.family >= 0x34) ? 1 : + IS_ENABLED(CONFIG_ARC_HAS_SWAPE); + READ_BCR(ARC_REG_XY_MEM_BCR, cpu->extn_xymem); /* Read CCM BCRs for boot reporting even if not enabled in Kconfig */ @@ -160,64 +201,38 @@ static void read_arc_build_cfg_regs(void) cpu->extn.rtt = bcr.ver ? 1 : 0; cpu->extn.debug = cpu->extn.ap | cpu->extn.smart | cpu->extn.rtt; -} -static const struct cpuinfo_data arc_cpu_tbl[] = { -#ifdef CONFIG_ISA_ARCOMPACT - { {0x20, "ARC 600" }, 0x2F}, - { {0x30, "ARC 700" }, 0x33}, - { {0x34, "ARC 700 R4.10"}, 0x34}, - { {0x35, "ARC 700 R4.11"}, 0x35}, -#else - { {0x50, "ARC HS38 R2.0"}, 0x51}, - { {0x52, "ARC HS38 R2.1"}, 0x52}, - { {0x53, "ARC HS38 R3.0"}, 0x53}, -#endif - { {0x00, NULL } } -}; + /* some hacks for lack of feature BCR info in old ARC700 cores */ + if (is_isa_arcompact()) { + if (!cpu->isa.ver) /* ISA BCR absent, use Kconfig info */ + cpu->isa.atomic = IS_ENABLED(CONFIG_ARC_HAS_LLSC); + else + cpu->isa.atomic = cpu->isa.atomic1; + cpu->isa.be = IS_ENABLED(CONFIG_CPU_BIG_ENDIAN); + + /* there's no direct way to distinguish 750 vs. 770 */ + if (unlikely(cpu->core.family < 0x34 || cpu->mmu.ver < 3)) + cpu->name = "ARC750"; + } +} static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) { struct cpuinfo_arc *cpu = &cpuinfo_arc700[cpu_id]; struct bcr_identity *core = &cpu->core; - const struct cpuinfo_data *tbl; - char *isa_nm; - int i, be, atomic; - int n = 0; + int i, n = 0; FIX_PTR(cpu); - if (is_isa_arcompact()) { - isa_nm = "ARCompact"; - be = IS_ENABLED(CONFIG_CPU_BIG_ENDIAN); - - atomic = cpu->isa.atomic1; - if (!cpu->isa.ver) /* ISA BCR absent, use Kconfig info */ - atomic = IS_ENABLED(CONFIG_ARC_HAS_LLSC); - } else { - isa_nm = "ARCv2"; - be = cpu->isa.be; - atomic = cpu->isa.atomic; - } - n += scnprintf(buf + n, len - n, "\nIDENTITY\t: ARCVER [%#02x] ARCNUM [%#02x] CHIPID [%#4x]\n", core->family, core->cpu_id, core->chip_id); - for (tbl = &arc_cpu_tbl[0]; tbl->info.id != 0; tbl++) { - if ((core->family >= tbl->info.id) && - (core->family <= tbl->up_range)) { - n += scnprintf(buf + n, len - n, - "processor [%d]\t: %s (%s ISA) %s\n", - cpu_id, tbl->info.str, isa_nm, - IS_AVAIL1(be, "[Big-Endian]")); - break; - } - } - - if (tbl->info.id == 0) - n += scnprintf(buf + n, len - n, "UNKNOWN ARC Processor\n"); + n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s\n", + cpu_id, cpu->name, cpu->details, + is_isa_arcompact() ? "ARCompact" : "ARCv2", + IS_AVAIL1(cpu->isa.be, "[Big-Endian]")); n += scnprintf(buf + n, len - n, "Timers\t\t: %s%s%s%s\nISA Extn\t: ", IS_AVAIL1(cpu->extn.timer0, "Timer0 "), @@ -226,7 +241,7 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) CONFIG_ARC_HAS_RTC)); n += i = scnprintf(buf + n, len - n, "%s%s%s%s%s", - IS_AVAIL2(atomic, "atomic ", CONFIG_ARC_HAS_LLSC), + IS_AVAIL2(cpu->isa.atomic, "atomic ", CONFIG_ARC_HAS_LLSC), IS_AVAIL2(cpu->isa.ldd, "ll64 ", CONFIG_ARC_HAS_LL64), IS_AVAIL1(cpu->isa.unalign, "unalign (not used)")); @@ -253,7 +268,7 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) IS_AVAIL1(cpu->extn.swap, "swap "), IS_AVAIL1(cpu->extn.minmax, "minmax "), IS_AVAIL1(cpu->extn.crc, "crc "), - IS_AVAIL2(1, "swape", CONFIG_ARC_HAS_SWAPE)); + IS_AVAIL2(cpu->extn.swape, "swape", CONFIG_ARC_HAS_SWAPE)); if (cpu->bpu.ver) n += scnprintf(buf + n, len - n, @@ -272,9 +287,7 @@ static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len) FIX_PTR(cpu); - n += scnprintf(buf + n, len - n, - "Vector Table\t: %#x\nPeripherals\t: %#lx:%#lx\n", - cpu->vec_base, perip_base, perip_end); + n += scnprintf(buf + n, len - n, "Vector Table\t: %#x\n", cpu->vec_base); if (cpu->extn.fpu_sp || cpu->extn.fpu_dp) n += scnprintf(buf + n, len - n, "FPU\t\t: %s%s\n", @@ -507,7 +520,7 @@ static void *c_start(struct seq_file *m, loff_t *pos) * way to pass it w/o having to kmalloc/free a 2 byte string. * Encode cpu-id as 0xFFcccc, which is decoded by show routine. */ - return *pos < num_possible_cpus() ? cpu_to_ptr(*pos) : NULL; + return *pos < nr_cpu_ids ? cpu_to_ptr(*pos) : NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c index 934150e7ac48..82f9bc819f4a 100644 --- a/arch/arc/kernel/troubleshoot.c +++ b/arch/arc/kernel/troubleshoot.c @@ -237,113 +237,3 @@ void show_kernel_fault_diag(const char *str, struct pt_regs *regs, if (!user_mode(regs)) show_stacktrace(current, regs); } - -#ifdef CONFIG_DEBUG_FS - -#include -#include -#include -#include -#include -#include -#include - -static struct dentry *test_dentry; -static struct dentry *test_dir; -static struct dentry *test_u32_dentry; - -static u32 clr_on_read = 1; - -#ifdef CONFIG_ARC_DBG_TLB_MISS_COUNT -u32 numitlb, numdtlb, num_pte_not_present; - -static int fill_display_data(char *kbuf) -{ - size_t num = 0; - num += sprintf(kbuf + num, "I-TLB Miss %x\n", numitlb); - num += sprintf(kbuf + num, "D-TLB Miss %x\n", numdtlb); - num += sprintf(kbuf + num, "PTE not present %x\n", num_pte_not_present); - - if (clr_on_read) - numitlb = numdtlb = num_pte_not_present = 0; - - return num; -} - -static int tlb_stats_open(struct inode *inode, struct file *file) -{ - file->private_data = (void *)__get_free_page(GFP_KERNEL); - return 0; -} - -/* called on user read(): display the counters */ -static ssize_t tlb_stats_output(struct file *file, /* file descriptor */ - char __user *user_buf, /* user buffer */ - size_t len, /* length of buffer */ - loff_t *offset) /* offset in the file */ -{ - size_t num; - char *kbuf = (char *)file->private_data; - - /* All of the data can he shoved in one iteration */ - if (*offset != 0) - return 0; - - num = fill_display_data(kbuf); - - /* simple_read_from_buffer() is helper for copy to user space - It copies up to @2 (num) bytes from kernel buffer @4 (kbuf) at offset - @3 (offset) into the user space address starting at @1 (user_buf). - @5 (len) is max size of user buffer - */ - return simple_read_from_buffer(user_buf, num, offset, kbuf, len); -} - -/* called on user write : clears the counters */ -static ssize_t tlb_stats_clear(struct file *file, const char __user *user_buf, - size_t length, loff_t *offset) -{ - numitlb = numdtlb = num_pte_not_present = 0; - return length; -} - -static int tlb_stats_close(struct inode *inode, struct file *file) -{ - free_page((unsigned long)(file->private_data)); - return 0; -} - -static const struct file_operations tlb_stats_file_ops = { - .read = tlb_stats_output, - .write = tlb_stats_clear, - .open = tlb_stats_open, - .release = tlb_stats_close -}; -#endif - -static int __init arc_debugfs_init(void) -{ - test_dir = debugfs_create_dir("arc", NULL); - -#ifdef CONFIG_ARC_DBG_TLB_MISS_COUNT - test_dentry = debugfs_create_file("tlb_stats", 0444, test_dir, NULL, - &tlb_stats_file_ops); -#endif - - test_u32_dentry = - debugfs_create_u32("clr_on_read", 0444, test_dir, &clr_on_read); - - return 0; -} - -module_init(arc_debugfs_init); - -static void __exit arc_debugfs_exit(void) -{ - debugfs_remove(test_u32_dentry); - debugfs_remove(test_dentry); - debugfs_remove(test_dir); -} -module_exit(arc_debugfs_exit); - -#endif diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c index 97dddbefb86a..2b96cfc3be75 100644 --- a/arch/arc/mm/cache.c +++ b/arch/arc/mm/cache.c @@ -22,8 +22,8 @@ #include static int l2_line_sz; -int ioc_exists; -volatile int slc_enable = 1, ioc_enable = 1; +static int ioc_exists; +int slc_enable = 1, ioc_enable = 1; unsigned long perip_base = ARC_UNCACHED_ADDR_SPACE; /* legacy value for boot */ unsigned long perip_end = 0xFFFFFFFF; /* legacy value */ @@ -53,18 +53,15 @@ char *arc_cache_mumbojumbo(int c, char *buf, int len) PR_CACHE(&cpuinfo_arc700[c].icache, CONFIG_ARC_HAS_ICACHE, "I-Cache"); PR_CACHE(&cpuinfo_arc700[c].dcache, CONFIG_ARC_HAS_DCACHE, "D-Cache"); - if (!is_isa_arcv2()) - return buf; - p = &cpuinfo_arc700[c].slc; if (p->ver) n += scnprintf(buf + n, len - n, "SLC\t\t: %uK, %uB Line%s\n", p->sz_k, p->line_len, IS_USED_RUN(slc_enable)); - if (ioc_exists) - n += scnprintf(buf + n, len - n, "IOC\t\t:%s\n", - IS_DISABLED_RUN(ioc_enable)); + n += scnprintf(buf + n, len - n, "Peripherals\t: %#lx%s%s\n", + perip_base, + IS_AVAIL3(ioc_exists, ioc_enable, ", IO-Coherency ")); return buf; } @@ -113,8 +110,10 @@ static void read_decode_cache_bcr_arcv2(int cpu) } READ_BCR(ARC_REG_CLUSTER_BCR, cbcr); - if (cbcr.c && ioc_enable) + if (cbcr.c) ioc_exists = 1; + else + ioc_enable = 0; /* HS 2.0 didn't have AUX_VOL */ if (cpuinfo_arc700[cpu].core.family > 0x51) { @@ -1002,7 +1001,7 @@ void arc_cache_init(void) read_aux_reg(ARC_REG_SLC_CTRL) | SLC_CTRL_DISABLE); } - if (is_isa_arcv2() && ioc_exists) { + if (is_isa_arcv2() && ioc_enable) { /* IO coherency base - 0x8z */ write_aux_reg(ARC_REG_IO_COH_AP0_BASE, 0x80000); /* IO coherency aperture size - 512Mb: 0x8z-0xAz */ diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index 20afc65e22dc..60aab5a7522b 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -45,7 +45,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size, * -For coherent data, Read/Write to buffers terminate early in cache * (vs. always going to memory - thus are faster) */ - if ((is_isa_arcv2() && ioc_exists) || + if ((is_isa_arcv2() && ioc_enable) || (attrs & DMA_ATTR_NON_CONSISTENT)) need_coh = 0; @@ -97,7 +97,7 @@ static void arc_dma_free(struct device *dev, size_t size, void *vaddr, int is_non_coh = 1; is_non_coh = (attrs & DMA_ATTR_NON_CONSISTENT) || - (is_isa_arcv2() && ioc_exists); + (is_isa_arcv2() && ioc_enable); if (PageHighMem(page) || !is_non_coh) iounmap((void __force __iomem *)vaddr); diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c index ec868a9081a1..bdb295e09160 100644 --- a/arch/arc/mm/tlb.c +++ b/arch/arc/mm/tlb.c @@ -793,16 +793,16 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len) char super_pg[64] = ""; if (p_mmu->s_pg_sz_m) - scnprintf(super_pg, 64, "%dM Super Page%s, ", + scnprintf(super_pg, 64, "%dM Super Page %s", p_mmu->s_pg_sz_m, IS_USED_CFG(CONFIG_TRANSPARENT_HUGEPAGE)); n += scnprintf(buf + n, len - n, - "MMU [v%x]\t: %dk PAGE, %sJTLB %d (%dx%d), uDTLB %d, uITLB %d %s%s\n", + "MMU [v%x]\t: %dk PAGE, %sJTLB %d (%dx%d), uDTLB %d, uITLB %d%s%s\n", p_mmu->ver, p_mmu->pg_sz_k, super_pg, p_mmu->sets * p_mmu->ways, p_mmu->sets, p_mmu->ways, p_mmu->u_dtlb, p_mmu->u_itlb, - IS_AVAIL2(p_mmu->pae, "PAE40 ", CONFIG_ARC_HAS_PAE40)); + IS_AVAIL2(p_mmu->pae, ", PAE40 ", CONFIG_ARC_HAS_PAE40)); return buf; } diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S index f1967eeb32e7..b30e4e36bb00 100644 --- a/arch/arc/mm/tlbex.S +++ b/arch/arc/mm/tlbex.S @@ -237,15 +237,6 @@ ex_saved_reg1: 2: -#ifdef CONFIG_ARC_DBG_TLB_MISS_COUNT - and.f 0, r0, _PAGE_PRESENT - bz 1f - ld r3, [num_pte_not_present] - add r3, r3, 1 - st r3, [num_pte_not_present] -1: -#endif - .endm ;----------------------------------------------------------------- @@ -309,12 +300,6 @@ ENTRY(EV_TLBMissI) TLBMISS_FREEUP_REGS -#ifdef CONFIG_ARC_DBG_TLB_MISS_COUNT - ld r0, [@numitlb] - add r0, r0, 1 - st r0, [@numitlb] -#endif - ;---------------------------------------------------------------- ; Get the PTE corresponding to V-addr accessed, r2 is setup with EFA LOAD_FAULT_PTE @@ -349,12 +334,6 @@ ENTRY(EV_TLBMissD) TLBMISS_FREEUP_REGS -#ifdef CONFIG_ARC_DBG_TLB_MISS_COUNT - ld r0, [@numdtlb] - add r0, r0, 1 - st r0, [@numdtlb] -#endif - ;---------------------------------------------------------------- ; Get the PTE corresponding to V-addr accessed ; If PTE exists, it will setup, r0 = PTE, r1 = Ptr to PTE, r2 = EFA diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index ba62df8c6e35..b71086d25195 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -217,7 +217,7 @@ static inline void *phys_to_virt(phys_addr_t x) #define _virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) #else #define __virt_to_pgoff(kaddr) (((u64)(kaddr) & ~PAGE_OFFSET) / PAGE_SIZE * sizeof(struct page)) -#define __page_to_voff(kaddr) (((u64)(page) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page)) +#define __page_to_voff(page) (((u64)(page) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page)) #define page_to_virt(page) ((void *)((__page_to_voff(page)) | PAGE_OFFSET)) #define virt_to_page(vaddr) ((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START)) diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c index 778a985c8a70..4b32168cf91a 100644 --- a/arch/arm64/mm/numa.c +++ b/arch/arm64/mm/numa.c @@ -147,7 +147,7 @@ static int __init early_cpu_to_node(int cpu) static int __init pcpu_cpu_distance(unsigned int from, unsigned int to) { - return node_distance(from, to); + return node_distance(early_cpu_to_node(from), early_cpu_to_node(to)); } static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, @@ -223,8 +223,11 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn) void *nd; int tnid; - pr_info("Initmem setup node %d [mem %#010Lx-%#010Lx]\n", - nid, start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1); + if (start_pfn < end_pfn) + pr_info("Initmem setup node %d [mem %#010Lx-%#010Lx]\n", nid, + start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1); + else + pr_info("Initmem setup node %d []\n", nid); nd_pa = memblock_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid); nd = __va(nd_pa); diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c index 099e170a93ee..0068fd411a84 100644 --- a/arch/cris/arch-v32/drivers/cryptocop.c +++ b/arch/cris/arch-v32/drivers/cryptocop.c @@ -3149,7 +3149,7 @@ static void print_dma_descriptors(struct cryptocop_int_operation *iop) printk("print_dma_descriptors start\n"); printk("iop:\n"); - printk("\tsid: 0x%lld\n", iop->sid); + printk("\tsid: 0x%llx\n", iop->sid); printk("\tcdesc_out: 0x%p\n", iop->cdesc_out); printk("\tcdesc_in: 0x%p\n", iop->cdesc_in); diff --git a/arch/h8300/include/asm/thread_info.h b/arch/h8300/include/asm/thread_info.h index b408fe660cf8..3cef06875f5c 100644 --- a/arch/h8300/include/asm/thread_info.h +++ b/arch/h8300/include/asm/thread_info.h @@ -31,7 +31,6 @@ struct thread_info { int cpu; /* cpu we're on */ int preempt_count; /* 0 => preemptable, <0 => BUG */ mm_segment_t addr_limit; - struct restart_block restart_block; }; /* @@ -44,9 +43,6 @@ struct thread_info { .cpu = 0, \ .preempt_count = INIT_PREEMPT_COUNT, \ .addr_limit = KERNEL_DS, \ - .restart_block = { \ - .fn = do_no_restart_syscall, \ - }, \ } #define init_thread_info (init_thread_union.thread_info) diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c index ad1f81f574e5..7138303cbbf2 100644 --- a/arch/h8300/kernel/signal.c +++ b/arch/h8300/kernel/signal.c @@ -79,7 +79,7 @@ restore_sigcontext(struct sigcontext *usc, int *pd0) unsigned int er0; /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; + current->restart_block.fn = do_no_restart_syscall; /* restore passed registers */ #define COPY(r) do { err |= get_user(regs->r, &usc->sc_##r); } while (0) diff --git a/arch/powerpc/include/asm/cpuidle.h b/arch/powerpc/include/asm/cpuidle.h index 01b8a13f0224..3919332965af 100644 --- a/arch/powerpc/include/asm/cpuidle.h +++ b/arch/powerpc/include/asm/cpuidle.h @@ -26,7 +26,7 @@ extern u64 pnv_first_deep_stop_state; std r0,0(r1); \ ptesync; \ ld r0,0(r1); \ -1: cmp cr0,r0,r0; \ +1: cmpd cr0,r0,r0; \ bne 1b; \ IDLE_INST; \ b . diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index 2e4e7d878c8e..84d49b197c32 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -93,6 +93,10 @@ ld reg,PACAKBASE(r13); /* get high part of &label */ \ ori reg,reg,(FIXED_SYMBOL_ABS_ADDR(label))@l; +#define __LOAD_HANDLER(reg, label) \ + ld reg,PACAKBASE(r13); \ + ori reg,reg,(ABS_ADDR(label))@l; + /* Exception register prefixes */ #define EXC_HV H #define EXC_STD @@ -208,6 +212,18 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) #define kvmppc_interrupt kvmppc_interrupt_pr #endif +#ifdef CONFIG_RELOCATABLE +#define BRANCH_TO_COMMON(reg, label) \ + __LOAD_HANDLER(reg, label); \ + mtctr reg; \ + bctr + +#else +#define BRANCH_TO_COMMON(reg, label) \ + b label + +#endif + #define __KVM_HANDLER_PROLOG(area, n) \ BEGIN_FTR_SECTION_NESTED(947) \ ld r10,area+EX_CFAR(r13); \ diff --git a/arch/powerpc/include/asm/tlb.h b/arch/powerpc/include/asm/tlb.h index f6f68f73e858..99e1397b71da 100644 --- a/arch/powerpc/include/asm/tlb.h +++ b/arch/powerpc/include/asm/tlb.h @@ -52,11 +52,23 @@ static inline int mm_is_core_local(struct mm_struct *mm) return cpumask_subset(mm_cpumask(mm), topology_sibling_cpumask(smp_processor_id())); } + +static inline int mm_is_thread_local(struct mm_struct *mm) +{ + return cpumask_equal(mm_cpumask(mm), + cpumask_of(smp_processor_id())); +} + #else static inline int mm_is_core_local(struct mm_struct *mm) { return 1; } + +static inline int mm_is_thread_local(struct mm_struct *mm) +{ + return 1; +} #endif #endif /* __KERNEL__ */ diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index f129408c6022..08ba447a4b3d 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -95,19 +95,35 @@ __start_interrupts: /* No virt vectors corresponding with 0x0..0x100 */ EXC_VIRT_NONE(0x4000, 0x4100) -EXC_REAL_BEGIN(system_reset, 0x100, 0x200) - SET_SCRATCH0(r13) + #ifdef CONFIG_PPC_P7_NAP -BEGIN_FTR_SECTION - /* Running native on arch 2.06 or later, check if we are - * waking up from nap/sleep/winkle. + /* + * If running native on arch 2.06 or later, check if we are waking up + * from nap/sleep/winkle, and branch to idle handler. */ - mfspr r13,SPRN_SRR1 - rlwinm. r13,r13,47-31,30,31 - beq 9f +#define IDLETEST(n) \ + BEGIN_FTR_SECTION ; \ + mfspr r10,SPRN_SRR1 ; \ + rlwinm. r10,r10,47-31,30,31 ; \ + beq- 1f ; \ + cmpwi cr3,r10,2 ; \ + BRANCH_TO_COMMON(r10, system_reset_idle_common) ; \ +1: \ + END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206) +#else +#define IDLETEST NOTEST +#endif - cmpwi cr3,r13,2 - GET_PACA(r13) +EXC_REAL_BEGIN(system_reset, 0x100, 0x200) + SET_SCRATCH0(r13) + EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common, EXC_STD, + IDLETEST, 0x100) + +EXC_REAL_END(system_reset, 0x100, 0x200) +EXC_VIRT_NONE(0x4100, 0x4200) + +#ifdef CONFIG_PPC_P7_NAP +EXC_COMMON_BEGIN(system_reset_idle_common) bl pnv_restore_hyp_resource li r0,PNV_THREAD_RUNNING @@ -130,14 +146,8 @@ BEGIN_FTR_SECTION blt cr3,2f b pnv_wakeup_loss 2: b pnv_wakeup_noloss +#endif -9: -END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206) -#endif /* CONFIG_PPC_P7_NAP */ - EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common, EXC_STD, - NOTEST, 0x100) -EXC_REAL_END(system_reset, 0x100, 0x200) -EXC_VIRT_NONE(0x4100, 0x4200) EXC_COMMON(system_reset_common, 0x100, system_reset_exception) #ifdef CONFIG_PPC_PSERIES @@ -817,10 +827,8 @@ EXC_VIRT(trap_0b, 0x4b00, 0x4c00, 0xb00) TRAMP_KVM(PACA_EXGEN, 0xb00) EXC_COMMON(trap_0b_common, 0xb00, unknown_exception) - -#define LOAD_SYSCALL_HANDLER(reg) \ - ld reg,PACAKBASE(r13); \ - ori reg,reg,(ABS_ADDR(system_call_common))@l; +#define LOAD_SYSCALL_HANDLER(reg) \ + __LOAD_HANDLER(reg, system_call_common) /* Syscall routine is used twice, in reloc-off and reloc-on paths */ #define SYSCALL_PSERIES_1 \ diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c index 9781c69eae57..03d089b3ed72 100644 --- a/arch/powerpc/kernel/hw_breakpoint.c +++ b/arch/powerpc/kernel/hw_breakpoint.c @@ -275,7 +275,7 @@ int hw_breakpoint_handler(struct die_args *args) if (!stepped) { WARN(1, "Unable to handle hardware breakpoint. Breakpoint at " "0x%lx will be disabled.", info->address); - perf_event_disable(bp); + perf_event_disable_inatomic(bp); goto out; } /* diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S index bd739fed26e3..72dac0b58061 100644 --- a/arch/powerpc/kernel/idle_book3s.S +++ b/arch/powerpc/kernel/idle_book3s.S @@ -90,6 +90,7 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_300) * Threads will spin in HMT_LOW until the lock bit is cleared. * r14 - pointer to core_idle_state * r15 - used to load contents of core_idle_state + * r9 - used as a temporary variable */ core_idle_lock_held: @@ -99,6 +100,8 @@ core_idle_lock_held: bne 3b HMT_MEDIUM lwarx r15,0,r14 + andi. r9,r15,PNV_CORE_IDLE_LOCK_BIT + bne core_idle_lock_held blr /* @@ -163,12 +166,6 @@ _GLOBAL(pnv_powersave_common) std r9,_MSR(r1) std r1,PACAR1(r13) -#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE - /* Tell KVM we're entering idle */ - li r4,KVM_HWTHREAD_IN_IDLE - stb r4,HSTATE_HWTHREAD_STATE(r13) -#endif - /* * Go to real mode to do the nap, as required by the architecture. * Also, we need to be in real mode before setting hwthread_state, @@ -185,6 +182,26 @@ _GLOBAL(pnv_powersave_common) .globl pnv_enter_arch207_idle_mode pnv_enter_arch207_idle_mode: +#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE + /* Tell KVM we're entering idle */ + li r4,KVM_HWTHREAD_IN_IDLE + /******************************************************/ + /* N O T E W E L L ! ! ! N O T E W E L L */ + /* The following store to HSTATE_HWTHREAD_STATE(r13) */ + /* MUST occur in real mode, i.e. with the MMU off, */ + /* and the MMU must stay off until we clear this flag */ + /* and test HSTATE_HWTHREAD_REQ(r13) in the system */ + /* reset interrupt vector in exceptions-64s.S. */ + /* The reason is that another thread can switch the */ + /* MMU to a guest context whenever this flag is set */ + /* to KVM_HWTHREAD_IN_IDLE, and if the MMU was on, */ + /* that would potentially cause this thread to start */ + /* executing instructions from guest memory in */ + /* hypervisor mode, leading to a host crash or data */ + /* corruption, or worse. */ + /******************************************************/ + stb r4,HSTATE_HWTHREAD_STATE(r13) +#endif stb r3,PACA_THREAD_IDLE_STATE(r13) cmpwi cr3,r3,PNV_THREAD_SLEEP bge cr3,2f @@ -250,6 +267,12 @@ enter_winkle: * r3 - requested stop state */ power_enter_stop: +#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE + /* Tell KVM we're entering idle */ + li r4,KVM_HWTHREAD_IN_IDLE + /* DO THIS IN REAL MODE! See comment above. */ + stb r4,HSTATE_HWTHREAD_STATE(r13) +#endif /* * Check if the requested state is a deep idle state. */ diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 9e7c10fe205f..ce6dc61b15b2 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1012,7 +1012,7 @@ void restore_tm_state(struct pt_regs *regs) /* Ensure that restore_math() will restore */ if (msr_diff & MSR_FP) current->thread.load_fp = 1; -#ifdef CONFIG_ALIVEC +#ifdef CONFIG_ALTIVEC if (cpu_has_feature(CPU_FTR_ALTIVEC) && msr_diff & MSR_VEC) current->thread.load_vec = 1; #endif diff --git a/arch/powerpc/kvm/book3s_hv_rm_xics.c b/arch/powerpc/kvm/book3s_hv_rm_xics.c index 82ff5de8b1e7..a0ea63ac2b52 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_xics.c +++ b/arch/powerpc/kvm/book3s_hv_rm_xics.c @@ -23,6 +23,7 @@ #include #include #include +#include #include "book3s_xics.h" diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c index 0e49ec541ab5..bda8c43be78a 100644 --- a/arch/powerpc/mm/tlb-radix.c +++ b/arch/powerpc/mm/tlb-radix.c @@ -175,7 +175,7 @@ void radix__flush_tlb_mm(struct mm_struct *mm) if (unlikely(pid == MMU_NO_CONTEXT)) goto no_context; - if (!mm_is_core_local(mm)) { + if (!mm_is_thread_local(mm)) { int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE); if (lock_tlbie) @@ -201,7 +201,7 @@ void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr) if (unlikely(pid == MMU_NO_CONTEXT)) goto no_context; - if (!mm_is_core_local(mm)) { + if (!mm_is_thread_local(mm)) { int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE); if (lock_tlbie) @@ -226,7 +226,7 @@ void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr, pid = mm ? mm->context.id : 0; if (unlikely(pid == MMU_NO_CONTEXT)) goto bail; - if (!mm_is_core_local(mm)) { + if (!mm_is_thread_local(mm)) { int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE); if (lock_tlbie) @@ -321,7 +321,7 @@ void radix__flush_tlb_range_psize(struct mm_struct *mm, unsigned long start, { unsigned long pid; unsigned long addr; - int local = mm_is_core_local(mm); + int local = mm_is_thread_local(mm); unsigned long ap = mmu_get_ap(psize); int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE); unsigned long page_size = 1UL << mmu_psize_defs[psize].shift; diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index 64053d9ac3f2..836c56290499 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -12,9 +12,7 @@ #ifndef __ASSEMBLY__ -unsigned long return_address(int depth); - -#define ftrace_return_address(n) return_address(n) +#define ftrace_return_address(n) __builtin_return_address(n) void _mcount(void); void ftrace_caller(void); diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 03323175de30..602af692efdc 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -192,7 +192,7 @@ struct task_struct; struct mm_struct; struct seq_file; -typedef int (*dump_trace_func_t)(void *data, unsigned long address); +typedef int (*dump_trace_func_t)(void *data, unsigned long address, int reliable); void dump_trace(dump_trace_func_t func, void *data, struct task_struct *task, unsigned long sp); diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 02613bad8bbb..3066031a73fe 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -9,6 +9,9 @@ #include #define __IGNORE_time +#define __IGNORE_pkey_mprotect +#define __IGNORE_pkey_alloc +#define __IGNORE_pkey_free #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_SYS_ALARM diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c index 43446fa2a4e5..c74c59236f44 100644 --- a/arch/s390/kernel/dis.c +++ b/arch/s390/kernel/dis.c @@ -2014,12 +2014,12 @@ void show_code(struct pt_regs *regs) *ptr++ = '\t'; ptr += print_insn(ptr, code + start, addr); start += opsize; - printk("%s", buffer); + pr_cont("%s", buffer); ptr = buffer; ptr += sprintf(ptr, "\n "); hops++; } - printk("\n"); + pr_cont("\n"); } void print_fn_code(unsigned char *code, unsigned long len) diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c index 6693383bc01b..55d4fe174fd9 100644 --- a/arch/s390/kernel/dumpstack.c +++ b/arch/s390/kernel/dumpstack.c @@ -38,10 +38,10 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp, if (sp < low || sp > high - sizeof(*sf)) return sp; sf = (struct stack_frame *) sp; + if (func(data, sf->gprs[8], 0)) + return sp; /* Follow the backchain. */ while (1) { - if (func(data, sf->gprs[8])) - return sp; low = sp; sp = sf->back_chain; if (!sp) @@ -49,6 +49,8 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp, if (sp <= low || sp > high - sizeof(*sf)) return sp; sf = (struct stack_frame *) sp; + if (func(data, sf->gprs[8], 1)) + return sp; } /* Zero backchain detected, check for interrupt frame. */ sp = (unsigned long) (sf + 1); @@ -56,7 +58,7 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp, return sp; regs = (struct pt_regs *) sp; if (!user_mode(regs)) { - if (func(data, regs->psw.addr)) + if (func(data, regs->psw.addr, 1)) return sp; } low = sp; @@ -85,33 +87,12 @@ void dump_trace(dump_trace_func_t func, void *data, struct task_struct *task, } EXPORT_SYMBOL_GPL(dump_trace); -struct return_address_data { - unsigned long address; - int depth; -}; - -static int __return_address(void *data, unsigned long address) -{ - struct return_address_data *rd = data; - - if (rd->depth--) - return 0; - rd->address = address; - return 1; -} - -unsigned long return_address(int depth) -{ - struct return_address_data rd = { .depth = depth + 2 }; - - dump_trace(__return_address, &rd, NULL, current_stack_pointer()); - return rd.address; -} -EXPORT_SYMBOL_GPL(return_address); - -static int show_address(void *data, unsigned long address) +static int show_address(void *data, unsigned long address, int reliable) { - printk("([<%016lx>] %pSR)\n", address, (void *)address); + if (reliable) + printk(" [<%016lx>] %pSR \n", address, (void *)address); + else + printk("([<%016lx>] %pSR)\n", address, (void *)address); return 0; } @@ -138,14 +119,14 @@ void show_stack(struct task_struct *task, unsigned long *sp) else stack = (unsigned long *)task->thread.ksp; } + printk(KERN_DEFAULT "Stack:\n"); for (i = 0; i < 20; i++) { if (((addr_t) stack & (THREAD_SIZE-1)) == 0) break; - if ((i * sizeof(long) % 32) == 0) - printk("%s ", i == 0 ? "" : "\n"); - printk("%016lx ", *stack++); + if (i % 4 == 0) + printk(KERN_DEFAULT " "); + pr_cont("%016lx%c", *stack++, i % 4 == 3 ? '\n' : ' '); } - printk("\n"); show_trace(task, (unsigned long)sp); } @@ -163,13 +144,13 @@ void show_registers(struct pt_regs *regs) mode = user_mode(regs) ? "User" : "Krnl"; printk("%s PSW : %p %p", mode, (void *)regs->psw.mask, (void *)regs->psw.addr); if (!user_mode(regs)) - printk(" (%pSR)", (void *)regs->psw.addr); - printk("\n"); + pr_cont(" (%pSR)", (void *)regs->psw.addr); + pr_cont("\n"); printk(" R:%x T:%x IO:%x EX:%x Key:%x M:%x W:%x " "P:%x AS:%x CC:%x PM:%x", psw->r, psw->t, psw->i, psw->e, psw->key, psw->m, psw->w, psw->p, psw->as, psw->cc, psw->pm); - printk(" RI:%x EA:%x", psw->ri, psw->eaba); - printk("\n%s GPRS: %016lx %016lx %016lx %016lx\n", mode, + pr_cont(" RI:%x EA:%x\n", psw->ri, psw->eaba); + printk("%s GPRS: %016lx %016lx %016lx %016lx\n", mode, regs->gprs[0], regs->gprs[1], regs->gprs[2], regs->gprs[3]); printk(" %016lx %016lx %016lx %016lx\n", regs->gprs[4], regs->gprs[5], regs->gprs[6], regs->gprs[7]); @@ -205,14 +186,14 @@ void die(struct pt_regs *regs, const char *str) printk("%s: %04x ilc:%d [#%d] ", str, regs->int_code & 0xffff, regs->int_code >> 17, ++die_counter); #ifdef CONFIG_PREEMPT - printk("PREEMPT "); + pr_cont("PREEMPT "); #endif #ifdef CONFIG_SMP - printk("SMP "); + pr_cont("SMP "); #endif if (debug_pagealloc_enabled()) - printk("DEBUG_PAGEALLOC"); - printk("\n"); + pr_cont("DEBUG_PAGEALLOC"); + pr_cont("\n"); notify_die(DIE_OOPS, str, regs, 0, regs->int_code & 0xffff, SIGSEGV); print_modules(); show_regs(regs); diff --git a/arch/s390/kernel/perf_event.c b/arch/s390/kernel/perf_event.c index 17431f63de00..955a7b6fa0a4 100644 --- a/arch/s390/kernel/perf_event.c +++ b/arch/s390/kernel/perf_event.c @@ -222,7 +222,7 @@ static int __init service_level_perf_register(void) } arch_initcall(service_level_perf_register); -static int __perf_callchain_kernel(void *data, unsigned long address) +static int __perf_callchain_kernel(void *data, unsigned long address, int reliable) { struct perf_callchain_entry_ctx *entry = data; diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c index 44f84b23d4e5..355db9db8210 100644 --- a/arch/s390/kernel/stacktrace.c +++ b/arch/s390/kernel/stacktrace.c @@ -27,12 +27,12 @@ static int __save_address(void *data, unsigned long address, int nosched) return 1; } -static int save_address(void *data, unsigned long address) +static int save_address(void *data, unsigned long address, int reliable) { return __save_address(data, address, 0); } -static int save_address_nosched(void *data, unsigned long address) +static int save_address_nosched(void *data, unsigned long address, int reliable) { return __save_address(data, address, 1); } diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c index cd404aa3931c..4a0c5bce3552 100644 --- a/arch/s390/mm/hugetlbpage.c +++ b/arch/s390/mm/hugetlbpage.c @@ -217,6 +217,7 @@ static __init int setup_hugepagesz(char *opt) } else if (MACHINE_HAS_EDAT2 && size == PUD_SIZE) { hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT); } else { + hugetlb_bad_size(); pr_err("hugepagesz= specifies an unsupported page size %s\n", string); return 0; diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index f56a39bd8ba6..b3e9d18f2ec6 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -151,36 +151,40 @@ void __init free_initrd_mem(unsigned long start, unsigned long end) #ifdef CONFIG_MEMORY_HOTPLUG int arch_add_memory(int nid, u64 start, u64 size, bool for_device) { - unsigned long normal_end_pfn = PFN_DOWN(memblock_end_of_DRAM()); - unsigned long dma_end_pfn = PFN_DOWN(MAX_DMA_ADDRESS); + unsigned long zone_start_pfn, zone_end_pfn, nr_pages; unsigned long start_pfn = PFN_DOWN(start); unsigned long size_pages = PFN_DOWN(size); - unsigned long nr_pages; - int rc, zone_enum; + pg_data_t *pgdat = NODE_DATA(nid); + struct zone *zone; + int rc, i; rc = vmem_add_mapping(start, size); if (rc) return rc; - while (size_pages > 0) { - if (start_pfn < dma_end_pfn) { - nr_pages = (start_pfn + size_pages > dma_end_pfn) ? - dma_end_pfn - start_pfn : size_pages; - zone_enum = ZONE_DMA; - } else if (start_pfn < normal_end_pfn) { - nr_pages = (start_pfn + size_pages > normal_end_pfn) ? - normal_end_pfn - start_pfn : size_pages; - zone_enum = ZONE_NORMAL; + for (i = 0; i < MAX_NR_ZONES; i++) { + zone = pgdat->node_zones + i; + if (zone_idx(zone) != ZONE_MOVABLE) { + /* Add range within existing zone limits, if possible */ + zone_start_pfn = zone->zone_start_pfn; + zone_end_pfn = zone->zone_start_pfn + + zone->spanned_pages; } else { - nr_pages = size_pages; - zone_enum = ZONE_MOVABLE; + /* Add remaining range to ZONE_MOVABLE */ + zone_start_pfn = start_pfn; + zone_end_pfn = start_pfn + size_pages; } - rc = __add_pages(nid, NODE_DATA(nid)->node_zones + zone_enum, - start_pfn, size_pages); + if (start_pfn < zone_start_pfn || start_pfn >= zone_end_pfn) + continue; + nr_pages = (start_pfn + size_pages > zone_end_pfn) ? + zone_end_pfn - start_pfn : size_pages; + rc = __add_pages(nid, zone, start_pfn, nr_pages); if (rc) break; start_pfn += nr_pages; size_pages -= nr_pages; + if (!size_pages) + break; } if (rc) vmem_remove_mapping(start, size); diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index 16f4c3960b87..9a4de4599c7b 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -13,7 +13,7 @@ #include #include -static int __s390_backtrace(void *data, unsigned long address) +static int __s390_backtrace(void *data, unsigned long address, int reliable) { unsigned int *depth = data; diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile index 77f28ce9c646..9976fcecd17e 100644 --- a/arch/x86/entry/Makefile +++ b/arch/x86/entry/Makefile @@ -5,8 +5,8 @@ OBJECT_FILES_NON_STANDARD_entry_$(BITS).o := y OBJECT_FILES_NON_STANDARD_entry_64_compat.o := y -CFLAGS_syscall_64.o += -Wno-override-init -CFLAGS_syscall_32.o += -Wno-override-init +CFLAGS_syscall_64.o += $(call cc-option,-Wno-override-init,) +CFLAGS_syscall_32.o += $(call cc-option,-Wno-override-init,) obj-y := entry_$(BITS).o thunk_$(BITS).o syscall_$(BITS).o obj-y += common.o diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index eab0915f5995..a74a2dbc0180 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -3607,10 +3607,14 @@ __init int intel_pmu_init(void) /* * Quirk: v2 perfmon does not report fixed-purpose events, so - * assume at least 3 events: + * assume at least 3 events, when not running in a hypervisor: */ - if (version > 1) - x86_pmu.num_counters_fixed = max((int)edx.split.num_counters_fixed, 3); + if (version > 1) { + int assume = 3 * !boot_cpu_has(X86_FEATURE_HYPERVISOR); + + x86_pmu.num_counters_fixed = + max((int)edx.split.num_counters_fixed, assume); + } if (boot_cpu_has(X86_FEATURE_PDCM)) { u64 capabilities; diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c index 3ca87b5a8677..4f5ac726335f 100644 --- a/arch/x86/events/intel/cstate.c +++ b/arch/x86/events/intel/cstate.c @@ -48,7 +48,8 @@ * Scope: Core * MSR_CORE_C6_RESIDENCY: CORE C6 Residency Counter * perf code: 0x02 - * Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW,SKL + * Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW + * SKL,KNL * Scope: Core * MSR_CORE_C7_RESIDENCY: CORE C7 Residency Counter * perf code: 0x03 @@ -56,15 +57,16 @@ * Scope: Core * MSR_PKG_C2_RESIDENCY: Package C2 Residency Counter. * perf code: 0x00 - * Available model: SNB,IVB,HSW,BDW,SKL + * Available model: SNB,IVB,HSW,BDW,SKL,KNL * Scope: Package (physical package) * MSR_PKG_C3_RESIDENCY: Package C3 Residency Counter. * perf code: 0x01 - * Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL + * Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,KNL * Scope: Package (physical package) * MSR_PKG_C6_RESIDENCY: Package C6 Residency Counter. * perf code: 0x02 - * Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW,SKL + * Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW + * SKL,KNL * Scope: Package (physical package) * MSR_PKG_C7_RESIDENCY: Package C7 Residency Counter. * perf code: 0x03 @@ -118,6 +120,7 @@ struct cstate_model { /* Quirk flags */ #define SLM_PKG_C6_USE_C7_MSR (1UL << 0) +#define KNL_CORE_C6_MSR (1UL << 1) struct perf_cstate_msr { u64 msr; @@ -488,6 +491,18 @@ static const struct cstate_model slm_cstates __initconst = { .quirks = SLM_PKG_C6_USE_C7_MSR, }; + +static const struct cstate_model knl_cstates __initconst = { + .core_events = BIT(PERF_CSTATE_CORE_C6_RES), + + .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) | + BIT(PERF_CSTATE_PKG_C3_RES) | + BIT(PERF_CSTATE_PKG_C6_RES), + .quirks = KNL_CORE_C6_MSR, +}; + + + #define X86_CSTATES_MODEL(model, states) \ { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long) &(states) } @@ -523,6 +538,8 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = { X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_MOBILE, snb_cstates), X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_DESKTOP, snb_cstates), + + X86_CSTATES_MODEL(INTEL_FAM6_XEON_PHI_KNL, knl_cstates), { }, }; MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match); @@ -558,6 +575,11 @@ static int __init cstate_probe(const struct cstate_model *cm) if (cm->quirks & SLM_PKG_C6_USE_C7_MSR) pkg_msr[PERF_CSTATE_PKG_C6_RES].msr = MSR_PKG_C7_RESIDENCY; + /* KNL has different MSR for CORE C6 */ + if (cm->quirks & KNL_CORE_C6_MSR) + pkg_msr[PERF_CSTATE_CORE_C6_RES].msr = MSR_KNL_CORE_C6_RESIDENCY; + + has_cstate_core = cstate_probe_msr(cm->core_events, PERF_CSTATE_CORE_EVENT_MAX, core_msr, core_events_attrs); diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h index de25aad07853..d34bd370074b 100644 --- a/arch/x86/include/asm/io.h +++ b/arch/x86/include/asm/io.h @@ -351,4 +351,10 @@ extern void arch_phys_wc_del(int handle); #define arch_phys_wc_add arch_phys_wc_add #endif +#ifdef CONFIG_X86_PAT +extern int arch_io_reserve_memtype_wc(resource_size_t start, resource_size_t size); +extern void arch_io_free_memtype_wc(resource_size_t start, resource_size_t size); +#define arch_io_reserve_memtype_wc arch_io_reserve_memtype_wc +#endif + #endif /* _ASM_X86_IO_H */ diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 8a5abaa7d453..931ced8ca345 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -454,6 +454,7 @@ static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK; mp_override_legacy_irq(bus_irq, polarity, trigger, gsi); + acpi_penalize_sci_irq(bus_irq, trigger, polarity); /* * stash over-ride to indicate we've been here diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c index 620ab06bcf45..017bda12caae 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -429,7 +429,7 @@ int __init save_microcode_in_initrd_amd(void) * We need the physical address of the container for both bitness since * boot_params.hdr.ramdisk_image is a physical address. */ - cont = __pa(container); + cont = __pa_nodebug(container); cont_va = container; #endif diff --git a/arch/x86/kernel/mcount_64.S b/arch/x86/kernel/mcount_64.S index efe73aacf966..7b0d3da52fb4 100644 --- a/arch/x86/kernel/mcount_64.S +++ b/arch/x86/kernel/mcount_64.S @@ -18,8 +18,10 @@ #ifdef CC_USING_FENTRY # define function_hook __fentry__ +EXPORT_SYMBOL(__fentry__) #else # define function_hook mcount +EXPORT_SYMBOL(mcount) #endif /* All cases save the original rbp (8 bytes) */ @@ -295,7 +297,6 @@ trace: jmp fgraph_trace END(function_hook) #endif /* CONFIG_DYNAMIC_FTRACE */ -EXPORT_SYMBOL(function_hook) #endif /* CONFIG_FUNCTION_TRACER */ #ifdef CONFIG_FUNCTION_GRAPH_TRACER diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c index 51402a7e4ca6..0bee04d41bed 100644 --- a/arch/x86/kernel/quirks.c +++ b/arch/x86/kernel/quirks.c @@ -625,8 +625,6 @@ static void amd_disable_seq_and_redirect_scrub(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F3, amd_disable_seq_and_redirect_scrub); -#endif - #if defined(CONFIG_X86_64) && defined(CONFIG_X86_MCE) #include #include @@ -657,3 +655,4 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2fc0, quirk_intel_brickland_xeon_ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, quirk_intel_brickland_xeon_ras_cap); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2083, quirk_intel_purley_xeon_ras_cap); #endif +#endif diff --git a/arch/x86/kernel/unwind_guess.c b/arch/x86/kernel/unwind_guess.c index 9298993dc8b7..2d721e533cf4 100644 --- a/arch/x86/kernel/unwind_guess.c +++ b/arch/x86/kernel/unwind_guess.c @@ -47,7 +47,14 @@ void __unwind_start(struct unwind_state *state, struct task_struct *task, get_stack_info(first_frame, state->task, &state->stack_info, &state->stack_mask); - if (!__kernel_text_address(*first_frame)) + /* + * The caller can provide the address of the first frame directly + * (first_frame) or indirectly (regs->sp) to indicate which stack frame + * to start unwinding at. Skip ahead until we reach it. + */ + if (!unwind_done(state) && + (!on_stack(&state->stack_info, first_frame, sizeof(long)) || + !__kernel_text_address(*first_frame))) unwind_next_frame(state); } EXPORT_SYMBOL_GPL(__unwind_start); diff --git a/arch/x86/mm/kaslr.c b/arch/x86/mm/kaslr.c index ddd2661c4502..887e57182716 100644 --- a/arch/x86/mm/kaslr.c +++ b/arch/x86/mm/kaslr.c @@ -104,10 +104,10 @@ void __init kernel_randomize_memory(void) * consistent with the vaddr_start/vaddr_end variables. */ BUILD_BUG_ON(vaddr_start >= vaddr_end); - BUILD_BUG_ON(config_enabled(CONFIG_X86_ESPFIX64) && + BUILD_BUG_ON(IS_ENABLED(CONFIG_X86_ESPFIX64) && vaddr_end >= EFI_VA_START); - BUILD_BUG_ON((config_enabled(CONFIG_X86_ESPFIX64) || - config_enabled(CONFIG_EFI)) && + BUILD_BUG_ON((IS_ENABLED(CONFIG_X86_ESPFIX64) || + IS_ENABLED(CONFIG_EFI)) && vaddr_end >= __START_KERNEL_map); BUILD_BUG_ON(vaddr_end > __START_KERNEL_map); diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 170cc4ff057b..83e701f160a9 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -730,6 +730,20 @@ void io_free_memtype(resource_size_t start, resource_size_t end) free_memtype(start, end); } +int arch_io_reserve_memtype_wc(resource_size_t start, resource_size_t size) +{ + enum page_cache_mode type = _PAGE_CACHE_MODE_WC; + + return io_reserve_memtype(start, start + size, &type); +} +EXPORT_SYMBOL(arch_io_reserve_memtype_wc); + +void arch_io_free_memtype_wc(resource_size_t start, resource_size_t size) +{ + io_free_memtype(start, start + size); +} +EXPORT_SYMBOL(arch_io_free_memtype_wc); + pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, unsigned long size, pgprot_t vma_prot) { diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index c0fdd57da7aa..bdd855685403 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1837,6 +1837,7 @@ static void __init init_hvm_pv_info(void) xen_domain_type = XEN_HVM_DOMAIN; } +#endif static int xen_cpu_up_prepare(unsigned int cpu) { @@ -1887,6 +1888,7 @@ static int xen_cpu_up_online(unsigned int cpu) return 0; } +#ifdef CONFIG_XEN_PVHVM #ifdef CONFIG_KEXEC_CORE static void xen_hvm_shutdown(void) { diff --git a/block/badblocks.c b/block/badblocks.c index 6610e282a03e..6ebcef282314 100644 --- a/block/badblocks.c +++ b/block/badblocks.c @@ -133,6 +133,26 @@ retry: } EXPORT_SYMBOL_GPL(badblocks_check); +static void badblocks_update_acked(struct badblocks *bb) +{ + u64 *p = bb->page; + int i; + bool unacked = false; + + if (!bb->unacked_exist) + return; + + for (i = 0; i < bb->count ; i++) { + if (!BB_ACK(p[i])) { + unacked = true; + break; + } + } + + if (!unacked) + bb->unacked_exist = 0; +} + /** * badblocks_set() - Add a range of bad blocks to the table. * @bb: the badblocks structure that holds all badblock information @@ -294,6 +314,8 @@ int badblocks_set(struct badblocks *bb, sector_t s, int sectors, bb->changed = 1; if (!acknowledged) bb->unacked_exist = 1; + else + badblocks_update_acked(bb); write_sequnlock_irqrestore(&bb->lock, flags); return rv; @@ -401,6 +423,7 @@ int badblocks_clear(struct badblocks *bb, sector_t s, int sectors) } } + badblocks_update_acked(bb); bb->changed = 1; out: write_sequnlock_irq(&bb->lock); diff --git a/block/blk-flush.c b/block/blk-flush.c index 6a14b68b9135..3c882cbc7541 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -342,6 +342,34 @@ static void flush_data_end_io(struct request *rq, int error) struct request_queue *q = rq->q; struct blk_flush_queue *fq = blk_get_flush_queue(q, NULL); + /* + * Updating q->in_flight[] here for making this tag usable + * early. Because in blk_queue_start_tag(), + * q->in_flight[BLK_RW_ASYNC] is used to limit async I/O and + * reserve tags for sync I/O. + * + * More importantly this way can avoid the following I/O + * deadlock: + * + * - suppose there are 40 fua requests comming to flush queue + * and queue depth is 31 + * - 30 rqs are scheduled then blk_queue_start_tag() can't alloc + * tag for async I/O any more + * - all the 30 rqs are completed before FLUSH_PENDING_TIMEOUT + * and flush_data_end_io() is called + * - the other rqs still can't go ahead if not updating + * q->in_flight[BLK_RW_ASYNC] here, meantime these rqs + * are held in flush data queue and make no progress of + * handling post flush rq + * - only after the post flush rq is handled, all these rqs + * can be completed + */ + + elv_completed_request(q, rq); + + /* for avoiding double accounting */ + rq->cmd_flags &= ~REQ_STARTED; + /* * After populating an empty queue, kick it to avoid stall. Read * the comment in flush_end_io(). diff --git a/block/blk-mq.c b/block/blk-mq.c index ddc2eed64771..f3d27a6dee09 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1217,9 +1217,9 @@ static struct request *blk_mq_map_request(struct request_queue *q, blk_mq_set_alloc_data(&alloc_data, q, 0, ctx, hctx); rq = __blk_mq_alloc_request(&alloc_data, op, op_flags); - hctx->queued++; - data->hctx = hctx; - data->ctx = ctx; + data->hctx = alloc_data.hctx; + data->ctx = alloc_data.ctx; + data->hctx->queued++; return rq; } diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c index f1e6dcc7a827..54d48b90de2c 100644 --- a/drivers/acpi/acpica/dsinit.c +++ b/drivers/acpi/acpica/dsinit.c @@ -46,6 +46,7 @@ #include "acdispat.h" #include "acnamesp.h" #include "actables.h" +#include "acinterp.h" #define _COMPONENT ACPI_DISPATCHER ACPI_MODULE_NAME("dsinit") @@ -214,23 +215,17 @@ acpi_ds_initialize_objects(u32 table_index, /* Walk entire namespace from the supplied root */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - /* * We don't use acpi_walk_namespace since we do not want to acquire * the namespace reader lock. */ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX, - ACPI_NS_WALK_UNLOCK, acpi_ds_init_one_object, - NULL, &info, NULL); + 0, acpi_ds_init_one_object, NULL, &info, + NULL); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); } - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); status = acpi_get_table_by_index(table_index, &table); if (ACPI_FAILURE(status)) { diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index 32e9ddc0cf2b..2b3210f42a46 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -99,14 +99,11 @@ acpi_ds_auto_serialize_method(struct acpi_namespace_node *node, "Method auto-serialization parse [%4.4s] %p\n", acpi_ut_get_node_name(node), node)); - acpi_ex_enter_interpreter(); - /* Create/Init a root op for the method parse tree */ op = acpi_ps_alloc_op(AML_METHOD_OP, obj_desc->method.aml_start); if (!op) { - status = AE_NO_MEMORY; - goto unlock; + return_ACPI_STATUS(AE_NO_MEMORY); } acpi_ps_set_name(op, node->name.integer); @@ -118,8 +115,7 @@ acpi_ds_auto_serialize_method(struct acpi_namespace_node *node, acpi_ds_create_walk_state(node->owner_id, NULL, NULL, NULL); if (!walk_state) { acpi_ps_free_op(op); - status = AE_NO_MEMORY; - goto unlock; + return_ACPI_STATUS(AE_NO_MEMORY); } status = acpi_ds_init_aml_walk(walk_state, op, node, @@ -138,8 +134,6 @@ acpi_ds_auto_serialize_method(struct acpi_namespace_node *node, status = acpi_ps_parse_aml(walk_state); acpi_ps_delete_parse_tree(op); -unlock: - acpi_ex_exit_interpreter(); return_ACPI_STATUS(status); } @@ -730,26 +724,6 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, acpi_ds_method_data_delete_all(walk_state); - /* - * If method is serialized, release the mutex and restore the - * current sync level for this thread - */ - if (method_desc->method.mutex) { - - /* Acquisition Depth handles recursive calls */ - - method_desc->method.mutex->mutex.acquisition_depth--; - if (!method_desc->method.mutex->mutex.acquisition_depth) { - walk_state->thread->current_sync_level = - method_desc->method.mutex->mutex. - original_sync_level; - - acpi_os_release_mutex(method_desc->method. - mutex->mutex.os_mutex); - method_desc->method.mutex->mutex.thread_id = 0; - } - } - /* * Delete any namespace objects created anywhere within the * namespace by the execution of this method. Unless: @@ -786,6 +760,26 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, ~ACPI_METHOD_MODIFIED_NAMESPACE; } } + + /* + * If method is serialized, release the mutex and restore the + * current sync level for this thread + */ + if (method_desc->method.mutex) { + + /* Acquisition Depth handles recursive calls */ + + method_desc->method.mutex->mutex.acquisition_depth--; + if (!method_desc->method.mutex->mutex.acquisition_depth) { + walk_state->thread->current_sync_level = + method_desc->method.mutex->mutex. + original_sync_level; + + acpi_os_release_mutex(method_desc->method. + mutex->mutex.os_mutex); + method_desc->method.mutex->mutex.thread_id = 0; + } + } } /* Decrement the thread count on the method */ diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c index 028b22a3154e..e36218206bb0 100644 --- a/drivers/acpi/acpica/dswload2.c +++ b/drivers/acpi/acpica/dswload2.c @@ -607,11 +607,9 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) } } - acpi_ex_exit_interpreter(); status = acpi_ev_initialize_region (acpi_ns_get_attached_object(node), FALSE); - acpi_ex_enter_interpreter(); if (ACPI_FAILURE(status)) { /* diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c index 3843f1fc5dbb..75ddd160a716 100644 --- a/drivers/acpi/acpica/evrgnini.c +++ b/drivers/acpi/acpica/evrgnini.c @@ -45,6 +45,7 @@ #include "accommon.h" #include "acevents.h" #include "acnamesp.h" +#include "acinterp.h" #define _COMPONENT ACPI_EVENTS ACPI_MODULE_NAME("evrgnini") @@ -597,9 +598,11 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, } } + acpi_ex_exit_interpreter(); status = acpi_ev_execute_reg_method(region_obj, ACPI_REG_CONNECT); + acpi_ex_enter_interpreter(); if (acpi_ns_locked) { status = diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c index 334d3c5ba617..d1f20143bb11 100644 --- a/drivers/acpi/acpica/nsload.c +++ b/drivers/acpi/acpica/nsload.c @@ -137,7 +137,9 @@ unlock: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "**** Begin Table Object Initialization\n")); + acpi_ex_enter_interpreter(); status = acpi_ds_initialize_objects(table_index, node); + acpi_ex_exit_interpreter(); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "**** Completed Table Object Initialization\n")); diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index f0a029e68d3e..0d099a24f776 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -662,7 +662,7 @@ static int ghes_proc(struct ghes *ghes) ghes_do_proc(ghes, ghes->estatus); out: ghes_clear_estatus(ghes); - return 0; + return rc; } static void ghes_add_timer(struct ghes *ghes) diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index c983bf733ad3..bc3d914dfc3e 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -87,6 +87,7 @@ struct acpi_pci_link { static LIST_HEAD(acpi_link_list); static DEFINE_MUTEX(acpi_link_lock); +static int sci_irq = -1, sci_penalty; /* -------------------------------------------------------------------------- PCI Link Device Management @@ -496,25 +497,13 @@ static int acpi_irq_get_penalty(int irq) { int penalty = 0; - /* - * Penalize IRQ used by ACPI SCI. If ACPI SCI pin attributes conflict - * with PCI IRQ attributes, mark ACPI SCI as ISA_ALWAYS so it won't be - * use for PCI IRQs. - */ - if (irq == acpi_gbl_FADT.sci_interrupt) { - u32 type = irq_get_trigger_type(irq) & IRQ_TYPE_SENSE_MASK; - - if (type != IRQ_TYPE_LEVEL_LOW) - penalty += PIRQ_PENALTY_ISA_ALWAYS; - else - penalty += PIRQ_PENALTY_PCI_USING; - } + if (irq == sci_irq) + penalty += sci_penalty; if (irq < ACPI_MAX_ISA_IRQS) return penalty + acpi_isa_irq_penalty[irq]; - penalty += acpi_irq_pci_sharing_penalty(irq); - return penalty; + return penalty + acpi_irq_pci_sharing_penalty(irq); } int __init acpi_irq_penalty_init(void) @@ -619,6 +608,10 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) acpi_device_bid(link->device)); return -ENODEV; } else { + if (link->irq.active < ACPI_MAX_ISA_IRQS) + acpi_isa_irq_penalty[link->irq.active] += + PIRQ_PENALTY_PCI_USING; + printk(KERN_WARNING PREFIX "%s [%s] enabled at IRQ %d\n", acpi_device_name(link->device), acpi_device_bid(link->device), link->irq.active); @@ -849,7 +842,7 @@ static int __init acpi_irq_penalty_update(char *str, int used) continue; if (used) - new_penalty = acpi_irq_get_penalty(irq) + + new_penalty = acpi_isa_irq_penalty[irq] + PIRQ_PENALTY_ISA_USED; else new_penalty = 0; @@ -871,7 +864,7 @@ static int __init acpi_irq_penalty_update(char *str, int used) void acpi_penalize_isa_irq(int irq, int active) { if ((irq >= 0) && (irq < ARRAY_SIZE(acpi_isa_irq_penalty))) - acpi_isa_irq_penalty[irq] = acpi_irq_get_penalty(irq) + + acpi_isa_irq_penalty[irq] += (active ? PIRQ_PENALTY_ISA_USED : PIRQ_PENALTY_PCI_USING); } @@ -881,6 +874,17 @@ bool acpi_isa_irq_available(int irq) acpi_irq_get_penalty(irq) < PIRQ_PENALTY_ISA_ALWAYS); } +void acpi_penalize_sci_irq(int irq, int trigger, int polarity) +{ + sci_irq = irq; + + if (trigger == ACPI_MADT_TRIGGER_LEVEL && + polarity == ACPI_MADT_POLARITY_ACTIVE_LOW) + sci_penalty = PIRQ_PENALTY_PCI_USING; + else + sci_penalty = PIRQ_PENALTY_ISA_ALWAYS; +} + /* * Over-ride default table to reserve additional IRQs for use by ISA * e.g. acpi_irq_isa=5 diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index ba5f11cebee2..9669fc7c19df 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1418,30 +1418,33 @@ static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports, * Message mode could be enforced. In this case assume that advantage * of multipe MSIs is negated and use single MSI mode instead. */ - nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX, - PCI_IRQ_MSIX | PCI_IRQ_MSI); - if (nvec > 0) { - if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) { - hpriv->get_irq_vector = ahci_get_irq_vector; - hpriv->flags |= AHCI_HFLAG_MULTI_MSI; - return nvec; + if (n_ports > 1) { + nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX, + PCI_IRQ_MSIX | PCI_IRQ_MSI); + if (nvec > 0) { + if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) { + hpriv->get_irq_vector = ahci_get_irq_vector; + hpriv->flags |= AHCI_HFLAG_MULTI_MSI; + return nvec; + } + + /* + * Fallback to single MSI mode if the controller + * enforced MRSM mode. + */ + printk(KERN_INFO + "ahci: MRSM is on, fallback to single MSI\n"); + pci_free_irq_vectors(pdev); } /* - * Fallback to single MSI mode if the controller enforced MRSM - * mode. + * -ENOSPC indicated we don't have enough vectors. Don't bother + * trying a single vectors for any other error: */ - printk(KERN_INFO "ahci: MRSM is on, fallback to single MSI\n"); - pci_free_irq_vectors(pdev); + if (nvec < 0 && nvec != -ENOSPC) + return nvec; } - /* - * -ENOSPC indicated we don't have enough vectors. Don't bother trying - * a single vectors for any other error: - */ - if (nvec < 0 && nvec != -ENOSPC) - return nvec; - /* * If the host is not capable of supporting per-port vectors, fall * back to single MSI before finally attempting single MSI-X. @@ -1617,7 +1620,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) /* legacy intx interrupts */ pci_intx(pdev, 1); } - hpriv->irq = pdev->irq; + hpriv->irq = pci_irq_vector(pdev, 0); if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss) host->flags |= ATA_HOST_PARALLEL_SCAN; diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c index 811e11c82f32..0809cda93cc0 100644 --- a/drivers/block/DAC960.c +++ b/drivers/block/DAC960.c @@ -2954,7 +2954,7 @@ DAC960_DetectController(struct pci_dev *PCI_Device, case DAC960_PD_Controller: if (!request_region(Controller->IO_Address, 0x80, Controller->FullModelName)) { - DAC960_Error("IO port 0x%d busy for Controller at\n", + DAC960_Error("IO port 0x%lx busy for Controller at\n", Controller, Controller->IO_Address); goto Failure; } @@ -2990,7 +2990,7 @@ DAC960_DetectController(struct pci_dev *PCI_Device, case DAC960_P_Controller: if (!request_region(Controller->IO_Address, 0x80, Controller->FullModelName)){ - DAC960_Error("IO port 0x%d busy for Controller at\n", + DAC960_Error("IO port 0x%lx busy for Controller at\n", Controller, Controller->IO_Address); goto Failure; } diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index ba405b55329f..19a16b2dbb91 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -164,7 +164,7 @@ static void sock_shutdown(struct nbd_device *nbd) spin_lock(&nbd->sock_lock); if (!nbd->sock) { - spin_unlock_irq(&nbd->sock_lock); + spin_unlock(&nbd->sock_lock); return; } diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c index 482794526e8c..d2d2c89de5b4 100644 --- a/drivers/char/hw_random/core.c +++ b/drivers/char/hw_random/core.c @@ -84,14 +84,14 @@ static size_t rng_buffer_size(void) static void add_early_randomness(struct hwrng *rng) { - unsigned char bytes[16]; int bytes_read; + size_t size = min_t(size_t, 16, rng_buffer_size()); mutex_lock(&reading_mutex); - bytes_read = rng_get_data(rng, bytes, sizeof(bytes), 1); + bytes_read = rng_get_data(rng, rng_buffer, size, 1); mutex_unlock(&reading_mutex); if (bytes_read > 0) - add_device_randomness(bytes, bytes_read); + add_device_randomness(rng_buffer, bytes_read); } static inline void cleanup_rng(struct kref *kref) diff --git a/drivers/clk/at91/clk-programmable.c b/drivers/clk/at91/clk-programmable.c index 190122e64a3a..85a449cf61e3 100644 --- a/drivers/clk/at91/clk-programmable.c +++ b/drivers/clk/at91/clk-programmable.c @@ -203,7 +203,7 @@ at91_clk_register_programmable(struct regmap *regmap, ret = clk_hw_register(NULL, &prog->hw); if (ret) { kfree(prog); - hw = &prog->hw; + hw = ERR_PTR(ret); } return hw; diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index b68bf573dcfb..8c7763fd9efc 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -502,8 +502,12 @@ static long bcm2835_pll_rate_from_divisors(unsigned long parent_rate, static long bcm2835_pll_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate) { + struct bcm2835_pll *pll = container_of(hw, struct bcm2835_pll, hw); + const struct bcm2835_pll_data *data = pll->data; u32 ndiv, fdiv; + rate = clamp(rate, data->min_rate, data->max_rate); + bcm2835_pll_choose_ndiv_and_fdiv(rate, *parent_rate, &ndiv, &fdiv); return bcm2835_pll_rate_from_divisors(*parent_rate, ndiv, fdiv, 1); @@ -608,13 +612,6 @@ static int bcm2835_pll_set_rate(struct clk_hw *hw, u32 ana[4]; int i; - if (rate < data->min_rate || rate > data->max_rate) { - dev_err(cprman->dev, "%s: rate out of spec: %lu vs (%lu, %lu)\n", - clk_hw_get_name(hw), rate, - data->min_rate, data->max_rate); - return -EINVAL; - } - if (rate > data->max_fb_rate) { use_fb_prediv = true; rate /= 2; diff --git a/drivers/clk/clk-max77686.c b/drivers/clk/clk-max77686.c index b637f5979023..eb953d3b0b69 100644 --- a/drivers/clk/clk-max77686.c +++ b/drivers/clk/clk-max77686.c @@ -216,6 +216,7 @@ static int max77686_clk_probe(struct platform_device *pdev) return -EINVAL; } + drv_data->num_clks = num_clks; drv_data->max_clk_data = devm_kcalloc(dev, num_clks, sizeof(*drv_data->max_clk_data), GFP_KERNEL); diff --git a/drivers/clk/hisilicon/clk-hi6220.c b/drivers/clk/hisilicon/clk-hi6220.c index fe364e63f8de..c0e8e1f196aa 100644 --- a/drivers/clk/hisilicon/clk-hi6220.c +++ b/drivers/clk/hisilicon/clk-hi6220.c @@ -195,7 +195,7 @@ static void __init hi6220_clk_sys_init(struct device_node *np) hi6220_clk_register_divider(hi6220_div_clks_sys, ARRAY_SIZE(hi6220_div_clks_sys), clk_data); } -CLK_OF_DECLARE(hi6220_clk_sys, "hisilicon,hi6220-sysctrl", hi6220_clk_sys_init); +CLK_OF_DECLARE_DRIVER(hi6220_clk_sys, "hisilicon,hi6220-sysctrl", hi6220_clk_sys_init); /* clocks in media controller */ @@ -252,7 +252,7 @@ static void __init hi6220_clk_media_init(struct device_node *np) hi6220_clk_register_divider(hi6220_div_clks_media, ARRAY_SIZE(hi6220_div_clks_media), clk_data); } -CLK_OF_DECLARE(hi6220_clk_media, "hisilicon,hi6220-mediactrl", hi6220_clk_media_init); +CLK_OF_DECLARE_DRIVER(hi6220_clk_media, "hisilicon,hi6220-mediactrl", hi6220_clk_media_init); /* clocks in pmctrl */ diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig index 380c372d528e..f042bd2a6a99 100644 --- a/drivers/clk/mediatek/Kconfig +++ b/drivers/clk/mediatek/Kconfig @@ -8,6 +8,7 @@ config COMMON_CLK_MEDIATEK config COMMON_CLK_MT8135 bool "Clock driver for Mediatek MT8135" + depends on ARCH_MEDIATEK || COMPILE_TEST select COMMON_CLK_MEDIATEK default ARCH_MEDIATEK ---help--- @@ -15,6 +16,7 @@ config COMMON_CLK_MT8135 config COMMON_CLK_MT8173 bool "Clock driver for Mediatek MT8173" + depends on ARCH_MEDIATEK || COMPILE_TEST select COMMON_CLK_MEDIATEK default ARCH_MEDIATEK ---help--- diff --git a/drivers/clk/mvebu/armada-37xx-periph.c b/drivers/clk/mvebu/armada-37xx-periph.c index 45905fc0d75b..cecb0fdfaef6 100644 --- a/drivers/clk/mvebu/armada-37xx-periph.c +++ b/drivers/clk/mvebu/armada-37xx-periph.c @@ -305,7 +305,7 @@ static const struct of_device_id armada_3700_periph_clock_of_match[] = { }; static int armada_3700_add_composite_clk(const struct clk_periph_data *data, void __iomem *reg, spinlock_t *lock, - struct device *dev, struct clk_hw *hw) + struct device *dev, struct clk_hw **hw) { const struct clk_ops *mux_ops = NULL, *gate_ops = NULL, *rate_ops = NULL; @@ -329,6 +329,7 @@ static int armada_3700_add_composite_clk(const struct clk_periph_data *data, gate->lock = lock; gate_ops = gate_hw->init->ops; gate->reg = reg + (u64)gate->reg; + gate->flags = CLK_GATE_SET_TO_DISABLE; } if (data->rate_hw) { @@ -353,13 +354,13 @@ static int armada_3700_add_composite_clk(const struct clk_periph_data *data, } } - hw = clk_hw_register_composite(dev, data->name, data->parent_names, + *hw = clk_hw_register_composite(dev, data->name, data->parent_names, data->num_parents, mux_hw, mux_ops, rate_hw, rate_ops, gate_hw, gate_ops, CLK_IGNORE_UNUSED); - if (IS_ERR(hw)) - return PTR_ERR(hw); + if (IS_ERR(*hw)) + return PTR_ERR(*hw); return 0; } @@ -400,7 +401,7 @@ static int armada_3700_periph_clock_probe(struct platform_device *pdev) spin_lock_init(&driver_data->lock); for (i = 0; i < num_periph; i++) { - struct clk_hw *hw = driver_data->hw_data->hws[i]; + struct clk_hw **hw = &driver_data->hw_data->hws[i]; if (armada_3700_add_composite_clk(&data[i], reg, &driver_data->lock, dev, hw)) diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c index 51d152f735cc..17e68a724945 100644 --- a/drivers/clk/samsung/clk-exynos-audss.c +++ b/drivers/clk/samsung/clk-exynos-audss.c @@ -106,6 +106,7 @@ static const struct of_device_id exynos_audss_clk_of_match[] = { }, { }, }; +MODULE_DEVICE_TABLE(of, exynos_audss_clk_of_match); static void exynos_audss_clk_teardown(void) { diff --git a/drivers/clk/uniphier/clk-uniphier-core.c b/drivers/clk/uniphier/clk-uniphier-core.c index 5ffb898d0839..26c53f7963a4 100644 --- a/drivers/clk/uniphier/clk-uniphier-core.c +++ b/drivers/clk/uniphier/clk-uniphier-core.c @@ -79,7 +79,7 @@ static int uniphier_clk_probe(struct platform_device *pdev) hw_data->num = clk_num; /* avoid returning NULL for unused idx */ - for (; clk_num >= 0; clk_num--) + while (--clk_num >= 0) hw_data->hws[clk_num] = ERR_PTR(-EINVAL); for (p = data; p->name; p++) { @@ -110,6 +110,10 @@ static int uniphier_clk_remove(struct platform_device *pdev) static const struct of_device_id uniphier_clk_match[] = { /* System clock */ + { + .compatible = "socionext,uniphier-sld3-clock", + .data = uniphier_sld3_sys_clk_data, + }, { .compatible = "socionext,uniphier-ld4-clock", .data = uniphier_ld4_sys_clk_data, @@ -138,7 +142,7 @@ static const struct of_device_id uniphier_clk_match[] = { .compatible = "socionext,uniphier-ld20-clock", .data = uniphier_ld20_sys_clk_data, }, - /* Media I/O clock */ + /* Media I/O clock, SD clock */ { .compatible = "socionext,uniphier-sld3-mio-clock", .data = uniphier_sld3_mio_clk_data, @@ -156,20 +160,20 @@ static const struct of_device_id uniphier_clk_match[] = { .data = uniphier_sld3_mio_clk_data, }, { - .compatible = "socionext,uniphier-pro5-mio-clock", - .data = uniphier_pro5_mio_clk_data, + .compatible = "socionext,uniphier-pro5-sd-clock", + .data = uniphier_pro5_sd_clk_data, }, { - .compatible = "socionext,uniphier-pxs2-mio-clock", - .data = uniphier_pro5_mio_clk_data, + .compatible = "socionext,uniphier-pxs2-sd-clock", + .data = uniphier_pro5_sd_clk_data, }, { .compatible = "socionext,uniphier-ld11-mio-clock", .data = uniphier_sld3_mio_clk_data, }, { - .compatible = "socionext,uniphier-ld20-mio-clock", - .data = uniphier_pro5_mio_clk_data, + .compatible = "socionext,uniphier-ld20-sd-clock", + .data = uniphier_pro5_sd_clk_data, }, /* Peripheral clock */ { diff --git a/drivers/clk/uniphier/clk-uniphier-mio.c b/drivers/clk/uniphier/clk-uniphier-mio.c index 6aa7ec768d0b..218d20f099ce 100644 --- a/drivers/clk/uniphier/clk-uniphier-mio.c +++ b/drivers/clk/uniphier/clk-uniphier-mio.c @@ -93,7 +93,7 @@ const struct uniphier_clk_data uniphier_sld3_mio_clk_data[] = { { /* sentinel */ } }; -const struct uniphier_clk_data uniphier_pro5_mio_clk_data[] = { +const struct uniphier_clk_data uniphier_pro5_sd_clk_data[] = { UNIPHIER_MIO_CLK_SD_FIXED, UNIPHIER_MIO_CLK_SD(0, 0), UNIPHIER_MIO_CLK_SD(1, 1), diff --git a/drivers/clk/uniphier/clk-uniphier-mux.c b/drivers/clk/uniphier/clk-uniphier-mux.c index 15a2f2cbe0d9..2c243a894f3b 100644 --- a/drivers/clk/uniphier/clk-uniphier-mux.c +++ b/drivers/clk/uniphier/clk-uniphier-mux.c @@ -42,7 +42,7 @@ static u8 uniphier_clk_mux_get_parent(struct clk_hw *hw) struct uniphier_clk_mux *mux = to_uniphier_clk_mux(hw); int num_parents = clk_hw_get_num_parents(hw); int ret; - u32 val; + unsigned int val; u8 i; ret = regmap_read(mux->regmap, mux->reg, &val); diff --git a/drivers/clk/uniphier/clk-uniphier.h b/drivers/clk/uniphier/clk-uniphier.h index 3ae184062388..0244dba1f4cf 100644 --- a/drivers/clk/uniphier/clk-uniphier.h +++ b/drivers/clk/uniphier/clk-uniphier.h @@ -115,7 +115,7 @@ extern const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[]; extern const struct uniphier_clk_data uniphier_ld11_sys_clk_data[]; extern const struct uniphier_clk_data uniphier_ld20_sys_clk_data[]; extern const struct uniphier_clk_data uniphier_sld3_mio_clk_data[]; -extern const struct uniphier_clk_data uniphier_pro5_mio_clk_data[]; +extern const struct uniphier_clk_data uniphier_pro5_sd_clk_data[]; extern const struct uniphier_clk_data uniphier_ld4_peri_clk_data[]; extern const struct uniphier_clk_data uniphier_pro4_peri_clk_data[]; diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index f535f8123258..4737520ec823 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -179,6 +179,7 @@ struct _pid { /** * struct cpudata - Per CPU instance data storage * @cpu: CPU number for this instance data + * @policy: CPUFreq policy value * @update_util: CPUFreq utility callback information * @update_util_set: CPUFreq utility callback is set * @iowait_boost: iowait-related boost fraction @@ -201,6 +202,7 @@ struct _pid { struct cpudata { int cpu; + unsigned int policy; struct update_util_data update_util; bool update_util_set; @@ -1142,10 +1144,8 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) *min = clamp_t(int, min_perf, cpu->pstate.min_pstate, max_perf); } -static void intel_pstate_set_min_pstate(struct cpudata *cpu) +static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) { - int pstate = cpu->pstate.min_pstate; - trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu); cpu->pstate.current_pstate = pstate; /* @@ -1157,6 +1157,20 @@ static void intel_pstate_set_min_pstate(struct cpudata *cpu) pstate_funcs.get_val(cpu, pstate)); } +static void intel_pstate_set_min_pstate(struct cpudata *cpu) +{ + intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); +} + +static void intel_pstate_max_within_limits(struct cpudata *cpu) +{ + int min_pstate, max_pstate; + + update_turbo_state(); + intel_pstate_get_min_max(cpu, &min_pstate, &max_pstate); + intel_pstate_set_pstate(cpu, max_pstate); +} + static void intel_pstate_get_cpu_pstates(struct cpudata *cpu) { cpu->pstate.min_pstate = pstate_funcs.get_min(); @@ -1325,7 +1339,8 @@ static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu) from = cpu->pstate.current_pstate; - target_pstate = pstate_funcs.get_target_pstate(cpu); + target_pstate = cpu->policy == CPUFREQ_POLICY_PERFORMANCE ? + cpu->pstate.turbo_pstate : pstate_funcs.get_target_pstate(cpu); intel_pstate_update_pstate(cpu, target_pstate); @@ -1491,7 +1506,9 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy) pr_debug("set_policy cpuinfo.max %u policy->max %u\n", policy->cpuinfo.max_freq, policy->max); - cpu = all_cpu_data[0]; + cpu = all_cpu_data[policy->cpu]; + cpu->policy = policy->policy; + if (cpu->pstate.max_pstate_physical > cpu->pstate.max_pstate && policy->max < policy->cpuinfo.max_freq && policy->max > cpu->pstate.max_pstate * cpu->pstate.scaling) { @@ -1499,7 +1516,7 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy) policy->max = policy->cpuinfo.max_freq; } - if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) { + if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) { limits = &performance_limits; if (policy->max >= policy->cpuinfo.max_freq) { pr_debug("set performance\n"); @@ -1535,6 +1552,15 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy) limits->max_perf = round_up(limits->max_perf, FRAC_BITS); out: + if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) { + /* + * NOHZ_FULL CPUs need this as the governor callback may not + * be invoked on them. + */ + intel_pstate_clear_update_util_hook(policy->cpu); + intel_pstate_max_within_limits(cpu); + } + intel_pstate_set_update_util_hook(policy->cpu); intel_pstate_hwp_set_policy(policy); diff --git a/drivers/dax/Kconfig b/drivers/dax/Kconfig index daadd20aa936..3e2ab3b14eea 100644 --- a/drivers/dax/Kconfig +++ b/drivers/dax/Kconfig @@ -14,7 +14,7 @@ if DEV_DAX config DEV_DAX_PMEM tristate "PMEM DAX: direct access to persistent memory" - depends on NVDIMM_DAX + depends on LIBNVDIMM && NVDIMM_DAX default DEV_DAX help Support raw access to persistent memory. Note that this diff --git a/drivers/dax/pmem.c b/drivers/dax/pmem.c index 9630d8837ba9..4a15fa5df98b 100644 --- a/drivers/dax/pmem.c +++ b/drivers/dax/pmem.c @@ -44,7 +44,6 @@ static void dax_pmem_percpu_exit(void *data) dev_dbg(dax_pmem->dev, "%s\n", __func__); percpu_ref_exit(ref); - wait_for_completion(&dax_pmem->cmp); } static void dax_pmem_percpu_kill(void *data) @@ -54,6 +53,7 @@ static void dax_pmem_percpu_kill(void *data) dev_dbg(dax_pmem->dev, "%s\n", __func__); percpu_ref_kill(ref); + wait_for_completion(&dax_pmem->cmp); } static int dax_pmem_probe(struct device *dev) diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 26ee00f6bd58..d011cb89d25e 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -284,7 +284,7 @@ config GPIO_MM_LANTIQ config GPIO_MOCKUP tristate "GPIO Testing Driver" - depends on GPIOLIB + depends on GPIOLIB && SYSFS select GPIO_SYSFS help This enables GPIO Testing driver, which provides a way to test GPIO diff --git a/drivers/gpio/gpio-ath79.c b/drivers/gpio/gpio-ath79.c index 9457e2022bf6..dc37dbe4b46d 100644 --- a/drivers/gpio/gpio-ath79.c +++ b/drivers/gpio/gpio-ath79.c @@ -219,6 +219,7 @@ static const struct of_device_id ath79_gpio_of_match[] = { { .compatible = "qca,ar9340-gpio" }, {}, }; +MODULE_DEVICE_TABLE(of, ath79_gpio_of_match); static int ath79_gpio_probe(struct platform_device *pdev) { diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index 425501c39527..793518a30afe 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -239,7 +239,7 @@ static int mpc8xxx_gpio_irq_map(struct irq_domain *h, unsigned int irq, irq_hw_number_t hwirq) { irq_set_chip_data(irq, h->host_data); - irq_set_chip_and_handler(irq, &mpc8xxx_irq_chip, handle_level_irq); + irq_set_chip_and_handler(irq, &mpc8xxx_irq_chip, handle_edge_irq); return 0; } diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c index b9daa0bf32a4..ee1724806f46 100644 --- a/drivers/gpio/gpio-mxs.c +++ b/drivers/gpio/gpio-mxs.c @@ -308,8 +308,10 @@ static int mxs_gpio_probe(struct platform_device *pdev) writel(~0U, port->base + PINCTRL_IRQSTAT(port) + MXS_CLR); irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id()); - if (irq_base < 0) - return irq_base; + if (irq_base < 0) { + err = irq_base; + goto out_iounmap; + } port->domain = irq_domain_add_legacy(np, 32, irq_base, 0, &irq_domain_simple_ops, NULL); @@ -349,6 +351,8 @@ out_irqdomain_remove: irq_domain_remove(port->domain); out_irqdesc_free: irq_free_descs(irq_base, 32); +out_iounmap: + iounmap(port->base); return err; } diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c index e7d422a6b90b..5b0042776ec7 100644 --- a/drivers/gpio/gpio-stmpe.c +++ b/drivers/gpio/gpio-stmpe.c @@ -409,7 +409,7 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev) * 801/1801/1600, bits are cleared when read. * Edge detect register is not present on 801/1600/1801 */ - if (stmpe->partnum != STMPE801 || stmpe->partnum != STMPE1600 || + if (stmpe->partnum != STMPE801 && stmpe->partnum != STMPE1600 && stmpe->partnum != STMPE1801) { stmpe_reg_write(stmpe, statmsbreg + i, status[i]); stmpe_reg_write(stmpe, diff --git a/drivers/gpio/gpio-ts4800.c b/drivers/gpio/gpio-ts4800.c index 99256115bea5..c2a80b4cbf32 100644 --- a/drivers/gpio/gpio-ts4800.c +++ b/drivers/gpio/gpio-ts4800.c @@ -66,6 +66,7 @@ static const struct of_device_id ts4800_gpio_of_match[] = { { .compatible = "technologic,ts4800-gpio", }, {}, }; +MODULE_DEVICE_TABLE(of, ts4800_gpio_of_match); static struct platform_driver ts4800_gpio_driver = { .driver = { diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 58ece201b8e6..72a4b326fd0d 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -653,14 +653,17 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) { int idx, i; unsigned int irq_flags; + int ret = -ENOENT; for (i = 0, idx = 0; idx <= index; i++) { struct acpi_gpio_info info; struct gpio_desc *desc; desc = acpi_get_gpiod_by_index(adev, NULL, i, &info); - if (IS_ERR(desc)) + if (IS_ERR(desc)) { + ret = PTR_ERR(desc); break; + } if (info.gpioint && idx++ == index) { int irq = gpiod_to_irq(desc); @@ -679,7 +682,7 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) } } - return -ENOENT; + return ret; } EXPORT_SYMBOL_GPL(acpi_dev_gpio_irq_get); diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index f0fc3a0d37c8..20e09b7c2de3 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -333,6 +333,13 @@ struct linehandle_state { u32 numdescs; }; +#define GPIOHANDLE_REQUEST_VALID_FLAGS \ + (GPIOHANDLE_REQUEST_INPUT | \ + GPIOHANDLE_REQUEST_OUTPUT | \ + GPIOHANDLE_REQUEST_ACTIVE_LOW | \ + GPIOHANDLE_REQUEST_OPEN_DRAIN | \ + GPIOHANDLE_REQUEST_OPEN_SOURCE) + static long linehandle_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) { @@ -344,6 +351,8 @@ static long linehandle_ioctl(struct file *filep, unsigned int cmd, if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) { int val; + memset(&ghd, 0, sizeof(ghd)); + /* TODO: check if descriptors are really input */ for (i = 0; i < lh->numdescs; i++) { val = gpiod_get_value_cansleep(lh->descs[i]); @@ -444,6 +453,17 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip) u32 lflags = handlereq.flags; struct gpio_desc *desc; + if (offset >= gdev->ngpio) { + ret = -EINVAL; + goto out_free_descs; + } + + /* Return an error if a unknown flag is set */ + if (lflags & ~GPIOHANDLE_REQUEST_VALID_FLAGS) { + ret = -EINVAL; + goto out_free_descs; + } + desc = &gdev->descs[offset]; ret = gpiod_request(desc, lh->label); if (ret) @@ -536,6 +556,10 @@ struct lineevent_state { struct mutex read_lock; }; +#define GPIOEVENT_REQUEST_VALID_FLAGS \ + (GPIOEVENT_REQUEST_RISING_EDGE | \ + GPIOEVENT_REQUEST_FALLING_EDGE) + static unsigned int lineevent_poll(struct file *filep, struct poll_table_struct *wait) { @@ -623,6 +647,8 @@ static long lineevent_ioctl(struct file *filep, unsigned int cmd, if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) { int val; + memset(&ghd, 0, sizeof(ghd)); + val = gpiod_get_value_cansleep(le->desc); if (val < 0) return val; @@ -726,6 +752,18 @@ static int lineevent_create(struct gpio_device *gdev, void __user *ip) lflags = eventreq.handleflags; eflags = eventreq.eventflags; + if (offset >= gdev->ngpio) { + ret = -EINVAL; + goto out_free_label; + } + + /* Return an error if a unknown flag is set */ + if ((lflags & ~GPIOHANDLE_REQUEST_VALID_FLAGS) || + (eflags & ~GPIOEVENT_REQUEST_VALID_FLAGS)) { + ret = -EINVAL; + goto out_free_label; + } + /* This is just wrong: we don't look for events on output lines */ if (lflags & GPIOHANDLE_REQUEST_OUTPUT) { ret = -EINVAL; @@ -823,6 +861,8 @@ static long gpio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (cmd == GPIO_GET_CHIPINFO_IOCTL) { struct gpiochip_info chipinfo; + memset(&chipinfo, 0, sizeof(chipinfo)); + strncpy(chipinfo.name, dev_name(&gdev->dev), sizeof(chipinfo.name)); chipinfo.name[sizeof(chipinfo.name)-1] = '\0'; @@ -839,7 +879,7 @@ static long gpio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (copy_from_user(&lineinfo, ip, sizeof(lineinfo))) return -EFAULT; - if (lineinfo.line_offset > gdev->ngpio) + if (lineinfo.line_offset >= gdev->ngpio) return -EINVAL; desc = &gdev->descs[lineinfo.line_offset]; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index aa074fac0c7f..f3efb1c5dae9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -754,6 +754,10 @@ static const char *amdgpu_vram_names[] = { int amdgpu_bo_init(struct amdgpu_device *adev) { + /* reserve PAT memory space to WC for VRAM */ + arch_io_reserve_memtype_wc(adev->mc.aper_base, + adev->mc.aper_size); + /* Add an MTRR for the VRAM */ adev->mc.vram_mtrr = arch_phys_wc_add(adev->mc.aper_base, adev->mc.aper_size); @@ -769,6 +773,7 @@ void amdgpu_bo_fini(struct amdgpu_device *adev) { amdgpu_ttm_fini(adev); arch_phys_wc_del(adev->mc.vram_mtrr); + arch_io_free_memtype_wc(adev->mc.aper_base, adev->mc.aper_size); } int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo, diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c index 608df4c90520..0743e65cb240 100644 --- a/drivers/gpu/drm/ast/ast_ttm.c +++ b/drivers/gpu/drm/ast/ast_ttm.c @@ -267,6 +267,8 @@ int ast_mm_init(struct ast_private *ast) return ret; } + arch_io_reserve_memtype_wc(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0)); ast->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0)); @@ -275,11 +277,15 @@ int ast_mm_init(struct ast_private *ast) void ast_mm_fini(struct ast_private *ast) { + struct drm_device *dev = ast->dev; + ttm_bo_device_release(&ast->ttm.bdev); ast_ttm_global_release(ast); arch_phys_wc_del(ast->fb_mtrr); + arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0)); } void ast_ttm_placement(struct ast_bo *bo, int domain) diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c index bb2438dd8733..5e7e63ce7bce 100644 --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -267,6 +267,9 @@ int cirrus_mm_init(struct cirrus_device *cirrus) return ret; } + arch_io_reserve_memtype_wc(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0)); + cirrus->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0)); @@ -276,6 +279,8 @@ int cirrus_mm_init(struct cirrus_device *cirrus) void cirrus_mm_fini(struct cirrus_device *cirrus) { + struct drm_device *dev = cirrus->dev; + if (!cirrus->mm_inited) return; @@ -285,6 +290,8 @@ void cirrus_mm_fini(struct cirrus_device *cirrus) arch_phys_wc_del(cirrus->fb_mtrr); cirrus->fb_mtrr = 0; + arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0)); } void cirrus_ttm_placement(struct cirrus_bo *bo, int domain) diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index 919b35f2ad24..dcf7d11ac380 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -266,6 +266,9 @@ int mgag200_mm_init(struct mga_device *mdev) return ret; } + arch_io_reserve_memtype_wc(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0)); + mdev->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0)); @@ -274,10 +277,14 @@ int mgag200_mm_init(struct mga_device *mdev) void mgag200_mm_fini(struct mga_device *mdev) { + struct drm_device *dev = mdev->dev; + ttm_bo_device_release(&mdev->ttm.bdev); mgag200_ttm_global_release(mdev); + arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0)); arch_phys_wc_del(mdev->fb_mtrr); mdev->fb_mtrr = 0; } diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index 1825dbc33192..a6dbe8258040 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -398,6 +398,9 @@ nouveau_ttm_init(struct nouveau_drm *drm) /* VRAM init */ drm->gem.vram_available = drm->device.info.ram_user; + arch_io_reserve_memtype_wc(device->func->resource_addr(device, 1), + device->func->resource_size(device, 1)); + ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM, drm->gem.vram_available >> PAGE_SHIFT); if (ret) { @@ -430,6 +433,8 @@ nouveau_ttm_init(struct nouveau_drm *drm) void nouveau_ttm_fini(struct nouveau_drm *drm) { + struct nvkm_device *device = nvxx_device(&drm->device); + ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM); ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT); @@ -439,4 +444,7 @@ nouveau_ttm_fini(struct nouveau_drm *drm) arch_phys_wc_del(drm->ttm.mtrr); drm->ttm.mtrr = 0; + arch_io_free_memtype_wc(device->func->resource_addr(device, 1), + device->func->resource_size(device, 1)); + } diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index be30861afae9..41b72ce6613f 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -446,6 +446,10 @@ void radeon_bo_force_delete(struct radeon_device *rdev) int radeon_bo_init(struct radeon_device *rdev) { + /* reserve PAT memory space to WC for VRAM */ + arch_io_reserve_memtype_wc(rdev->mc.aper_base, + rdev->mc.aper_size); + /* Add an MTRR for the VRAM */ if (!rdev->fastfb_working) { rdev->mc.vram_mtrr = arch_phys_wc_add(rdev->mc.aper_base, @@ -463,6 +467,7 @@ void radeon_bo_fini(struct radeon_device *rdev) { radeon_ttm_fini(rdev); arch_phys_wc_del(rdev->mc.vram_mtrr); + arch_io_free_memtype_wc(rdev->mc.aper_base, rdev->mc.aper_size); } /* Returns how many bytes TTM can move per IB. diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 6d94e2ec5b4f..d252276feadf 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -79,12 +79,12 @@ config I2C_AMD8111 config I2C_HIX5HD2 tristate "Hix5hd2 high-speed I2C driver" - depends on ARCH_HIX5HD2 || COMPILE_TEST + depends on ARCH_HISI || ARCH_HIX5HD2 || COMPILE_TEST help - Say Y here to include support for high-speed I2C controller in the - Hisilicon based hix5hd2 SoCs. + Say Y here to include support for the high-speed I2C controller + used in HiSilicon hix5hd2 SoCs. - This driver can also be built as a module. If so, the module + This driver can also be built as a module. If so, the module will be called i2c-hix5hd2. config I2C_I801 @@ -589,10 +589,10 @@ config I2C_IMG config I2C_IMX tristate "IMX I2C interface" - depends on ARCH_MXC || ARCH_LAYERSCAPE + depends on ARCH_MXC || ARCH_LAYERSCAPE || COLDFIRE help Say Y here if you want to use the IIC bus controller on - the Freescale i.MX/MXC or Layerscape processors. + the Freescale i.MX/MXC, Layerscape or ColdFire processors. This driver can also be built as a module. If so, the module will be called i2c-imx. diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c index 1fe93c43215c..11e866d05368 100644 --- a/drivers/i2c/busses/i2c-designware-core.c +++ b/drivers/i2c/busses/i2c-designware-core.c @@ -95,6 +95,9 @@ #define DW_IC_STATUS_TFE BIT(2) #define DW_IC_STATUS_MST_ACTIVITY BIT(5) +#define DW_IC_SDA_HOLD_RX_SHIFT 16 +#define DW_IC_SDA_HOLD_RX_MASK GENMASK(23, DW_IC_SDA_HOLD_RX_SHIFT) + #define DW_IC_ERR_TX_ABRT 0x1 #define DW_IC_TAR_10BITADDR_MASTER BIT(12) @@ -420,12 +423,20 @@ int i2c_dw_init(struct dw_i2c_dev *dev) /* Configure SDA Hold Time if required */ reg = dw_readl(dev, DW_IC_COMP_VERSION); if (reg >= DW_IC_SDA_HOLD_MIN_VERS) { - if (dev->sda_hold_time) { - dw_writel(dev, dev->sda_hold_time, DW_IC_SDA_HOLD); - } else { + if (!dev->sda_hold_time) { /* Keep previous hold time setting if no one set it */ dev->sda_hold_time = dw_readl(dev, DW_IC_SDA_HOLD); } + /* + * Workaround for avoiding TX arbitration lost in case I2C + * slave pulls SDA down "too quickly" after falling egde of + * SCL by enabling non-zero SDA RX hold. Specification says it + * extends incoming SDA low to high transition while SCL is + * high but it apprears to help also above issue. + */ + if (!(dev->sda_hold_time & DW_IC_SDA_HOLD_RX_MASK)) + dev->sda_hold_time |= 1 << DW_IC_SDA_HOLD_RX_SHIFT; + dw_writel(dev, dev->sda_hold_time, DW_IC_SDA_HOLD); } else { dev_warn(dev->dev, "Hardware too old to adjust SDA hold time.\n"); diff --git a/drivers/i2c/busses/i2c-digicolor.c b/drivers/i2c/busses/i2c-digicolor.c index 9604024e0eb0..49f2084f7bb5 100644 --- a/drivers/i2c/busses/i2c-digicolor.c +++ b/drivers/i2c/busses/i2c-digicolor.c @@ -368,6 +368,7 @@ static const struct of_device_id dc_i2c_match[] = { { .compatible = "cnxt,cx92755-i2c" }, { }, }; +MODULE_DEVICE_TABLE(of, dc_i2c_match); static struct platform_driver dc_i2c_driver = { .probe = dc_i2c_probe, diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 08847e8b8998..eb3627f35d12 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -146,6 +146,7 @@ #define SMBHSTCFG_HST_EN 1 #define SMBHSTCFG_SMB_SMI_EN 2 #define SMBHSTCFG_I2C_EN 4 +#define SMBHSTCFG_SPD_WD 0x10 /* TCO configuration bits for TCOCTL */ #define TCOCTL_EN 0x0100 @@ -865,9 +866,16 @@ static s32 i801_access(struct i2c_adapter *adap, u16 addr, block = 1; break; case I2C_SMBUS_I2C_BLOCK_DATA: - /* NB: page 240 of ICH5 datasheet shows that the R/#W - * bit should be cleared here, even when reading */ - outb_p((addr & 0x7f) << 1, SMBHSTADD(priv)); + /* + * NB: page 240 of ICH5 datasheet shows that the R/#W + * bit should be cleared here, even when reading. + * However if SPD Write Disable is set (Lynx Point and later), + * the read will fail if we don't set the R/#W bit. + */ + outb_p(((addr & 0x7f) << 1) | + ((priv->original_hstcfg & SMBHSTCFG_SPD_WD) ? + (read_write & 0x01) : 0), + SMBHSTADD(priv)); if (read_write == I2C_SMBUS_READ) { /* NB: page 240 of ICH5 datasheet also shows * that DATA1 is the cmd field when reading */ @@ -1573,6 +1581,8 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) /* Disable SMBus interrupt feature if SMBus using SMI# */ priv->features &= ~FEATURE_IRQ; } + if (temp & SMBHSTCFG_SPD_WD) + dev_info(&dev->dev, "SPD Write Disable is set\n"); /* Clear special mode bits */ if (priv->features & (FEATURE_SMBUS_PEC | FEATURE_BLOCK_BUFFER)) diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index 592a8f26a708..47fc1f1acff7 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -1009,10 +1009,13 @@ static int i2c_imx_init_recovery_info(struct imx_i2c_struct *i2c_imx, rinfo->sda_gpio = of_get_named_gpio(pdev->dev.of_node, "sda-gpios", 0); rinfo->scl_gpio = of_get_named_gpio(pdev->dev.of_node, "scl-gpios", 0); - if (!gpio_is_valid(rinfo->sda_gpio) || - !gpio_is_valid(rinfo->scl_gpio) || - IS_ERR(i2c_imx->pinctrl_pins_default) || - IS_ERR(i2c_imx->pinctrl_pins_gpio)) { + if (rinfo->sda_gpio == -EPROBE_DEFER || + rinfo->scl_gpio == -EPROBE_DEFER) { + return -EPROBE_DEFER; + } else if (!gpio_is_valid(rinfo->sda_gpio) || + !gpio_is_valid(rinfo->scl_gpio) || + IS_ERR(i2c_imx->pinctrl_pins_default) || + IS_ERR(i2c_imx->pinctrl_pins_gpio)) { dev_dbg(&pdev->dev, "recovery information incomplete\n"); return 0; } diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c index b8ea62105f42..30132c3957cd 100644 --- a/drivers/i2c/busses/i2c-jz4780.c +++ b/drivers/i2c/busses/i2c-jz4780.c @@ -729,6 +729,7 @@ static const struct of_device_id jz4780_i2c_of_matches[] = { { .compatible = "ingenic,jz4780-i2c", }, { /* sentinel */ } }; +MODULE_DEVICE_TABLE(of, jz4780_i2c_of_matches); static int jz4780_i2c_probe(struct platform_device *pdev) { diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c index 50702c7bb244..df220666d627 100644 --- a/drivers/i2c/busses/i2c-rk3x.c +++ b/drivers/i2c/busses/i2c-rk3x.c @@ -694,6 +694,8 @@ static int rk3x_i2c_v0_calc_timings(unsigned long clk_rate, t_calc->div_low--; t_calc->div_high--; + /* Give the tuning value 0, that would not update con register */ + t_calc->tuning = 0; /* Maximum divider supported by hw is 0xffff */ if (t_calc->div_low > 0xffff) { t_calc->div_low = 0xffff; diff --git a/drivers/i2c/busses/i2c-xgene-slimpro.c b/drivers/i2c/busses/i2c-xgene-slimpro.c index 263685c7a512..05cf192ef1ac 100644 --- a/drivers/i2c/busses/i2c-xgene-slimpro.c +++ b/drivers/i2c/busses/i2c-xgene-slimpro.c @@ -105,7 +105,7 @@ struct slimpro_i2c_dev { struct mbox_chan *mbox_chan; struct mbox_client mbox_client; struct completion rd_complete; - u8 dma_buffer[I2C_SMBUS_BLOCK_MAX]; + u8 dma_buffer[I2C_SMBUS_BLOCK_MAX + 1]; /* dma_buffer[0] is used for length */ u32 *resp_msg; }; diff --git a/drivers/i2c/busses/i2c-xlp9xx.c b/drivers/i2c/busses/i2c-xlp9xx.c index 2a972ed7aa0d..e29ff37a43bd 100644 --- a/drivers/i2c/busses/i2c-xlp9xx.c +++ b/drivers/i2c/busses/i2c-xlp9xx.c @@ -426,6 +426,7 @@ static const struct of_device_id xlp9xx_i2c_of_match[] = { { .compatible = "netlogic,xlp980-i2c", }, { /* sentinel */ }, }; +MODULE_DEVICE_TABLE(of, xlp9xx_i2c_of_match); #ifdef CONFIG_ACPI static const struct acpi_device_id xlp9xx_i2c_acpi_ids[] = { diff --git a/drivers/i2c/busses/i2c-xlr.c b/drivers/i2c/busses/i2c-xlr.c index 0968f59b6df5..ad17d88d8573 100644 --- a/drivers/i2c/busses/i2c-xlr.c +++ b/drivers/i2c/busses/i2c-xlr.c @@ -358,6 +358,7 @@ static const struct of_device_id xlr_i2c_dt_ids[] = { }, { } }; +MODULE_DEVICE_TABLE(of, xlr_i2c_dt_ids); static int xlr_i2c_probe(struct platform_device *pdev) { diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 5ab67219f71e..1704fc84d647 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1681,6 +1681,7 @@ static struct i2c_client *of_i2c_register_device(struct i2c_adapter *adap, static void of_i2c_register_devices(struct i2c_adapter *adap) { struct device_node *bus, *node; + struct i2c_client *client; /* Only register child devices if the adapter has a node pointer set */ if (!adap->dev.of_node) @@ -1695,7 +1696,14 @@ static void of_i2c_register_devices(struct i2c_adapter *adap) for_each_available_child_of_node(bus, node) { if (of_node_test_and_set_flag(node, OF_POPULATED)) continue; - of_i2c_register_device(adap, node); + + client = of_i2c_register_device(adap, node); + if (IS_ERR(client)) { + dev_warn(&adap->dev, + "Failed to create I2C device for %s\n", + node->full_name); + of_node_clear_flag(node, OF_POPULATED); + } } of_node_put(bus); @@ -2299,6 +2307,7 @@ static int of_i2c_notify(struct notifier_block *nb, unsigned long action, if (IS_ERR(client)) { dev_err(&adap->dev, "failed to create client for '%s'\n", rd->dn->full_name); + of_node_clear_flag(rd->dn, OF_POPULATED); return notifier_from_errno(PTR_ERR(client)); } break; diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 7edcf3238620..99c051490eff 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -437,6 +437,8 @@ config STX104 config TI_ADC081C tristate "Texas Instruments ADC081C/ADC101C/ADC121C family" depends on I2C + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help If you say yes here you get support for Texas Instruments ADC081C, ADC101C and ADC121C ADC chips. diff --git a/drivers/iio/chemical/atlas-ph-sensor.c b/drivers/iio/chemical/atlas-ph-sensor.c index bd321b305a0a..ef761a508630 100644 --- a/drivers/iio/chemical/atlas-ph-sensor.c +++ b/drivers/iio/chemical/atlas-ph-sensor.c @@ -213,13 +213,14 @@ static int atlas_check_ec_calibration(struct atlas_data *data) struct device *dev = &data->client->dev; int ret; unsigned int val; + __be16 rval; - ret = regmap_bulk_read(data->regmap, ATLAS_REG_EC_PROBE, &val, 2); + ret = regmap_bulk_read(data->regmap, ATLAS_REG_EC_PROBE, &rval, 2); if (ret) return ret; - dev_info(dev, "probe set to K = %d.%.2d", be16_to_cpu(val) / 100, - be16_to_cpu(val) % 100); + val = be16_to_cpu(rval); + dev_info(dev, "probe set to K = %d.%.2d", val / 100, val % 100); ret = regmap_read(data->regmap, ATLAS_REG_EC_CALIB_STATUS, &val); if (ret) diff --git a/drivers/iio/temperature/maxim_thermocouple.c b/drivers/iio/temperature/maxim_thermocouple.c index 39dd2026ccc9..066161a4bccd 100644 --- a/drivers/iio/temperature/maxim_thermocouple.c +++ b/drivers/iio/temperature/maxim_thermocouple.c @@ -123,22 +123,24 @@ static int maxim_thermocouple_read(struct maxim_thermocouple_data *data, { unsigned int storage_bytes = data->chip->read_size; unsigned int shift = chan->scan_type.shift + (chan->address * 8); - unsigned int buf; + __be16 buf16; + __be32 buf32; int ret; - ret = spi_read(data->spi, (void *) &buf, storage_bytes); - if (ret) - return ret; - switch (storage_bytes) { case 2: - *val = be16_to_cpu(buf); + ret = spi_read(data->spi, (void *)&buf16, storage_bytes); + *val = be16_to_cpu(buf16); break; case 4: - *val = be32_to_cpu(buf); + ret = spi_read(data->spi, (void *)&buf32, storage_bytes); + *val = be32_to_cpu(buf32); break; } + if (ret) + return ret; + /* check to be sure this is a valid reading */ if (*val & data->chip->status_bit) return -EINVAL; diff --git a/drivers/ipack/ipack.c b/drivers/ipack/ipack.c index c0e7b624ce54..12102448fddd 100644 --- a/drivers/ipack/ipack.c +++ b/drivers/ipack/ipack.c @@ -178,7 +178,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, idev->id_vendor, idev->id_device); } -ipack_device_attr(id_format, "0x%hhu\n"); +ipack_device_attr(id_format, "0x%hhx\n"); static DEVICE_ATTR_RO(id); static DEVICE_ATTR_RO(id_device); diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 8abde6b8cedc..6d53810963f7 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -266,7 +266,7 @@ static struct raid_type { {"raid10_offset", "raid10 offset (striped mirrors)", 0, 2, 10, ALGORITHM_RAID10_OFFSET}, {"raid10_near", "raid10 near (striped mirrors)", 0, 2, 10, ALGORITHM_RAID10_NEAR}, {"raid10", "raid10 (striped mirrors)", 0, 2, 10, ALGORITHM_RAID10_DEFAULT}, - {"raid4", "raid4 (dedicated last parity disk)", 1, 2, 4, ALGORITHM_PARITY_N}, /* raid4 layout = raid5_n */ + {"raid4", "raid4 (dedicated first parity disk)", 1, 2, 5, ALGORITHM_PARITY_0}, /* raid4 layout = raid5_0 */ {"raid5_n", "raid5 (dedicated last parity disk)", 1, 2, 5, ALGORITHM_PARITY_N}, {"raid5_ls", "raid5 (left symmetric)", 1, 2, 5, ALGORITHM_LEFT_SYMMETRIC}, {"raid5_rs", "raid5 (right symmetric)", 1, 2, 5, ALGORITHM_RIGHT_SYMMETRIC}, @@ -2087,11 +2087,11 @@ static int super_init_validation(struct raid_set *rs, struct md_rdev *rdev) /* * No takeover/reshaping, because we don't have the extended v1.9.0 metadata */ - if (le32_to_cpu(sb->level) != mddev->level) { + if (le32_to_cpu(sb->level) != mddev->new_level) { DMERR("Reshaping/takeover raid sets not yet supported. (raid level/stripes/size change)"); return -EINVAL; } - if (le32_to_cpu(sb->layout) != mddev->layout) { + if (le32_to_cpu(sb->layout) != mddev->new_layout) { DMERR("Reshaping raid sets not yet supported. (raid layout change)"); DMERR(" 0x%X vs 0x%X", le32_to_cpu(sb->layout), mddev->layout); DMERR(" Old layout: %s w/ %d copies", @@ -2102,7 +2102,7 @@ static int super_init_validation(struct raid_set *rs, struct md_rdev *rdev) raid10_md_layout_to_copies(mddev->layout)); return -EINVAL; } - if (le32_to_cpu(sb->stripe_sectors) != mddev->chunk_sectors) { + if (le32_to_cpu(sb->stripe_sectors) != mddev->new_chunk_sectors) { DMERR("Reshaping raid sets not yet supported. (stripe sectors change)"); return -EINVAL; } @@ -2115,6 +2115,8 @@ static int super_init_validation(struct raid_set *rs, struct md_rdev *rdev) return -EINVAL; } + DMINFO("Discovered old metadata format; upgrading to extended metadata format"); + /* Table line is checked vs. authoritative superblock */ rs_set_new(rs); } @@ -2258,7 +2260,8 @@ static int super_validate(struct raid_set *rs, struct md_rdev *rdev) if (!mddev->events && super_init_validation(rs, rdev)) return -EINVAL; - if (le32_to_cpu(sb->compat_features) != FEATURE_FLAG_SUPPORTS_V190) { + if (le32_to_cpu(sb->compat_features) && + le32_to_cpu(sb->compat_features) != FEATURE_FLAG_SUPPORTS_V190) { rs->ti->error = "Unable to assemble array: Unknown flag(s) in compatible feature flags"; return -EINVAL; } @@ -3646,7 +3649,7 @@ static void raid_resume(struct dm_target *ti) static struct target_type raid_target = { .name = "raid", - .version = {1, 9, 0}, + .version = {1, 9, 1}, .module = THIS_MODULE, .ctr = raid_ctr, .dtr = raid_dtr, diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index bdf1606f67bc..9a8b71067c6e 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -145,7 +145,6 @@ static void dispatch_bios(void *context, struct bio_list *bio_list) struct dm_raid1_bio_record { struct mirror *m; - /* if details->bi_bdev == NULL, details were not saved */ struct dm_bio_details details; region_t write_region; }; @@ -1200,8 +1199,6 @@ static int mirror_map(struct dm_target *ti, struct bio *bio) struct dm_raid1_bio_record *bio_record = dm_per_bio_data(bio, sizeof(struct dm_raid1_bio_record)); - bio_record->details.bi_bdev = NULL; - if (rw == WRITE) { /* Save region for mirror_end_io() handler */ bio_record->write_region = dm_rh_bio_to_region(ms->rh, bio); @@ -1260,22 +1257,12 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int error) } if (error == -EOPNOTSUPP) - goto out; + return error; if ((error == -EWOULDBLOCK) && (bio->bi_opf & REQ_RAHEAD)) - goto out; + return error; if (unlikely(error)) { - if (!bio_record->details.bi_bdev) { - /* - * There wasn't enough memory to record necessary - * information for a retry or there was no other - * mirror in-sync. - */ - DMERR_LIMIT("Mirror read failed."); - return -EIO; - } - m = bio_record->m; DMERR("Mirror read failed from %s. Trying alternative device.", @@ -1291,7 +1278,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int error) bd = &bio_record->details; dm_bio_restore(bd, bio); - bio_record->details.bi_bdev = NULL; + bio->bi_error = 0; queue_bio(ms, bio, rw); return DM_ENDIO_INCOMPLETE; @@ -1299,9 +1286,6 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int error) DMERR("All replicated volumes dead, failing I/O"); } -out: - bio_record->details.bi_bdev = NULL; - return error; } diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c index dc75bea0d541..1d0d2adc050a 100644 --- a/drivers/md/dm-rq.c +++ b/drivers/md/dm-rq.c @@ -856,8 +856,11 @@ int dm_old_init_request_queue(struct mapped_device *md) kthread_init_worker(&md->kworker); md->kworker_task = kthread_run(kthread_worker_fn, &md->kworker, "kdmwork-%s", dm_device_name(md)); - if (IS_ERR(md->kworker_task)) - return PTR_ERR(md->kworker_task); + if (IS_ERR(md->kworker_task)) { + int error = PTR_ERR(md->kworker_task); + md->kworker_task = NULL; + return error; + } elv_register_queue(md->queue); diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 3e407a9cde1f..c4b53b332607 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -695,37 +695,32 @@ int dm_table_add_target(struct dm_table *t, const char *type, tgt->type = dm_get_target_type(type); if (!tgt->type) { - DMERR("%s: %s: unknown target type", dm_device_name(t->md), - type); + DMERR("%s: %s: unknown target type", dm_device_name(t->md), type); return -EINVAL; } if (dm_target_needs_singleton(tgt->type)) { if (t->num_targets) { - DMERR("%s: target type %s must appear alone in table", - dm_device_name(t->md), type); - return -EINVAL; + tgt->error = "singleton target type must appear alone in table"; + goto bad; } t->singleton = true; } if (dm_target_always_writeable(tgt->type) && !(t->mode & FMODE_WRITE)) { - DMERR("%s: target type %s may not be included in read-only tables", - dm_device_name(t->md), type); - return -EINVAL; + tgt->error = "target type may not be included in a read-only table"; + goto bad; } if (t->immutable_target_type) { if (t->immutable_target_type != tgt->type) { - DMERR("%s: immutable target type %s cannot be mixed with other target types", - dm_device_name(t->md), t->immutable_target_type->name); - return -EINVAL; + tgt->error = "immutable target type cannot be mixed with other target types"; + goto bad; } } else if (dm_target_is_immutable(tgt->type)) { if (t->num_targets) { - DMERR("%s: immutable target type %s cannot be mixed with other target types", - dm_device_name(t->md), tgt->type->name); - return -EINVAL; + tgt->error = "immutable target type cannot be mixed with other target types"; + goto bad; } t->immutable_target_type = tgt->type; } @@ -740,7 +735,6 @@ int dm_table_add_target(struct dm_table *t, const char *type, */ if (!adjoin(t, tgt)) { tgt->error = "Gap in table"; - r = -EINVAL; goto bad; } diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 147af9536d0c..ef7bf1dd6900 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1423,8 +1423,6 @@ static void cleanup_mapped_device(struct mapped_device *md) if (md->bs) bioset_free(md->bs); - cleanup_srcu_struct(&md->io_barrier); - if (md->disk) { spin_lock(&_minor_lock); md->disk->private_data = NULL; @@ -1436,6 +1434,8 @@ static void cleanup_mapped_device(struct mapped_device *md) if (md->queue) blk_cleanup_queue(md->queue); + cleanup_srcu_struct(&md->io_barrier); + if (md->bdev) { bdput(md->bdev); md->bdev = NULL; diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index af23d7dfe752..2e5233b60971 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -247,7 +247,9 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed, cxl_ctx_get(); if ((rc = cxl_ops->attach_process(ctx, kernel, wed, 0))) { + put_pid(ctx->glpid); put_pid(ctx->pid); + ctx->glpid = ctx->pid = NULL; cxl_adapter_context_put(ctx->afu->adapter); cxl_ctx_put(); goto out; diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c index d0b421f49b39..77080cc5fa0a 100644 --- a/drivers/misc/cxl/file.c +++ b/drivers/misc/cxl/file.c @@ -193,6 +193,16 @@ static long afu_ioctl_start_work(struct cxl_context *ctx, ctx->mmio_err_ff = !!(work.flags & CXL_START_WORK_ERR_FF); + /* + * Increment the mapped context count for adapter. This also checks + * if adapter_context_lock is taken. + */ + rc = cxl_adapter_context_get(ctx->afu->adapter); + if (rc) { + afu_release_irqs(ctx, ctx); + goto out; + } + /* * We grab the PID here and not in the file open to allow for the case * where a process (master, some daemon, etc) has opened the chardev on @@ -205,15 +215,6 @@ static long afu_ioctl_start_work(struct cxl_context *ctx, ctx->pid = get_task_pid(current, PIDTYPE_PID); ctx->glpid = get_task_pid(current->group_leader, PIDTYPE_PID); - /* - * Increment the mapped context count for adapter. This also checks - * if adapter_context_lock is taken. - */ - rc = cxl_adapter_context_get(ctx->afu->adapter); - if (rc) { - afu_release_irqs(ctx, ctx); - goto out; - } trace_cxl_attach(ctx, work.work_element_descriptor, work.num_interrupts, amr); @@ -221,6 +222,9 @@ static long afu_ioctl_start_work(struct cxl_context *ctx, amr))) { afu_release_irqs(ctx, ctx); cxl_adapter_context_put(ctx->afu->adapter); + put_pid(ctx->glpid); + put_pid(ctx->pid); + ctx->glpid = ctx->pid = NULL; goto out; } diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c index 1525870f460a..33741ad4a74a 100644 --- a/drivers/misc/sgi-gru/grumain.c +++ b/drivers/misc/sgi-gru/grumain.c @@ -283,7 +283,7 @@ static void gru_unload_mm_tracker(struct gru_state *gru, spin_lock(&gru->gs_asid_lock); BUG_ON((asids->mt_ctxbitmap & ctxbitmap) != ctxbitmap); asids->mt_ctxbitmap ^= ctxbitmap; - gru_dbg(grudev, "gid %d, gts %p, gms %p, ctxnum 0x%d, asidmap 0x%lx\n", + gru_dbg(grudev, "gid %d, gts %p, gms %p, ctxnum %d, asidmap 0x%lx\n", gru->gs_gid, gts, gms, gts->ts_ctxnum, gms->ms_asidmap[0]); spin_unlock(&gru->gs_asid_lock); spin_unlock(&gms->ms_asid_lock); diff --git a/drivers/nvdimm/Kconfig b/drivers/nvdimm/Kconfig index 8b2b740d6679..124c2432ac9c 100644 --- a/drivers/nvdimm/Kconfig +++ b/drivers/nvdimm/Kconfig @@ -89,7 +89,7 @@ config NVDIMM_PFN Select Y if unsure config NVDIMM_DAX - tristate "NVDIMM DAX: Raw access to persistent memory" + bool "NVDIMM DAX: Raw access to persistent memory" default LIBNVDIMM depends on NVDIMM_PFN help diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index 3509cff68ef9..abe5c6bc756c 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -2176,12 +2176,14 @@ static struct device **scan_labels(struct nd_region *nd_region) return devs; err: - for (i = 0; devs[i]; i++) - if (is_nd_blk(&nd_region->dev)) - namespace_blk_release(devs[i]); - else - namespace_pmem_release(devs[i]); - kfree(devs); + if (devs) { + for (i = 0; devs[i]; i++) + if (is_nd_blk(&nd_region->dev)) + namespace_blk_release(devs[i]); + else + namespace_pmem_release(devs[i]); + kfree(devs); + } return NULL; } diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 42b3a8217073..24618431a14b 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -47,7 +47,7 @@ static struct nd_region *to_region(struct pmem_device *pmem) return to_nd_region(to_dev(pmem)->parent); } -static void pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset, +static int pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset, unsigned int len) { struct device *dev = to_dev(pmem); @@ -62,8 +62,12 @@ static void pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset, __func__, (unsigned long long) sector, cleared / 512, cleared / 512 > 1 ? "s" : ""); badblocks_clear(&pmem->bb, sector, cleared / 512); + } else { + return -EIO; } + invalidate_pmem(pmem->virt_addr + offset, len); + return 0; } static void write_pmem(void *pmem_addr, struct page *page, @@ -123,7 +127,7 @@ static int pmem_do_bvec(struct pmem_device *pmem, struct page *page, flush_dcache_page(page); write_pmem(pmem_addr, page, off, len); if (unlikely(bad_pmem)) { - pmem_clear_poison(pmem, pmem_off, len); + rc = pmem_clear_poison(pmem, pmem_off, len); write_pmem(pmem_addr, page, off, len); } } diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index bfdd0744b686..ad70507cfb56 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -610,6 +610,7 @@ static int msi_verify_entries(struct pci_dev *dev) * msi_capability_init - configure device's MSI capability structure * @dev: pointer to the pci_dev data structure of MSI device function * @nvec: number of interrupts to allocate + * @affinity: flag to indicate cpu irq affinity mask should be set * * Setup the MSI capability structure of the device with the requested * number of interrupts. A return value of zero indicates the successful @@ -752,6 +753,7 @@ static void msix_program_entries(struct pci_dev *dev, * @dev: pointer to the pci_dev data structure of MSI-X device function * @entries: pointer to an array of struct msix_entry entries * @nvec: number of @entries + * @affinity: flag to indicate cpu irq affinity mask should be set * * Setup the MSI-X capability structure of device function with a * single MSI-X irq. A return of zero indicates the successful setup of diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 831935af7389..a7a88476e215 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1205,7 +1205,7 @@ static int verify_fcx_max_data(struct dasd_device *device, __u8 lpm) mdc, lpm); return mdc; } - fcx_max_data = mdc * FCX_MAX_DATA_FACTOR; + fcx_max_data = (u32)mdc * FCX_MAX_DATA_FACTOR; if (fcx_max_data < private->fcx_max_data) { dev_warn(&device->cdev->dev, "The maximum data size for zHPF requests %u " @@ -1675,7 +1675,7 @@ static u32 get_fcx_max_data(struct dasd_device *device) " data size for zHPF requests failed\n"); return 0; } else - return mdc * FCX_MAX_DATA_FACTOR; + return (u32)mdc * FCX_MAX_DATA_FACTOR; } /* diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c index 46be25c7461e..876c7e6e3a99 100644 --- a/drivers/s390/cio/chp.c +++ b/drivers/s390/cio/chp.c @@ -780,7 +780,7 @@ static int cfg_wait_idle(void) static int __init chp_init(void) { struct chp_id chpid; - int ret; + int state, ret; ret = crw_register_handler(CRW_RSC_CPATH, chp_process_crw); if (ret) @@ -791,7 +791,9 @@ static int __init chp_init(void) return 0; /* Register available channel-paths. */ chp_id_for_each(&chpid) { - if (chp_info_get_status(chpid) != CHP_STATUS_NOT_RECOGNIZED) + state = chp_info_get_status(chpid); + if (state == CHP_STATUS_CONFIGURED || + state == CHP_STATUS_STANDBY) chp_new(chpid); } diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index db2739079cbb..790babc5ef66 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -353,7 +353,7 @@ static void NCR5380_print_phase(struct Scsi_Host *instance) #endif -static int probe_irq __initdata; +static int probe_irq; /** * probe_intr - helper for IRQ autoprobe @@ -365,7 +365,7 @@ static int probe_irq __initdata; * used by the IRQ probe code. */ -static irqreturn_t __init probe_intr(int irq, void *dev_id) +static irqreturn_t probe_intr(int irq, void *dev_id) { probe_irq = irq; return IRQ_HANDLED; @@ -380,7 +380,7 @@ static irqreturn_t __init probe_intr(int irq, void *dev_id) * and then looking to see what interrupt actually turned up. */ -static int __init __maybe_unused NCR5380_probe_irq(struct Scsi_Host *instance, +static int __maybe_unused NCR5380_probe_irq(struct Scsi_Host *instance, int possible) { struct NCR5380_hostdata *hostdata = shost_priv(instance); diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 68138a647dfc..d9239c2d49b1 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -900,8 +900,9 @@ void hwi_ring_cq_db(struct beiscsi_hba *phba, static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba) { struct sgl_handle *psgl_handle; + unsigned long flags; - spin_lock_bh(&phba->io_sgl_lock); + spin_lock_irqsave(&phba->io_sgl_lock, flags); if (phba->io_sgl_hndl_avbl) { beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO, "BM_%d : In alloc_io_sgl_handle," @@ -919,14 +920,16 @@ static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba) phba->io_sgl_alloc_index++; } else psgl_handle = NULL; - spin_unlock_bh(&phba->io_sgl_lock); + spin_unlock_irqrestore(&phba->io_sgl_lock, flags); return psgl_handle; } static void free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) { - spin_lock_bh(&phba->io_sgl_lock); + unsigned long flags; + + spin_lock_irqsave(&phba->io_sgl_lock, flags); beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO, "BM_%d : In free_,io_sgl_free_index=%d\n", phba->io_sgl_free_index); @@ -941,7 +944,7 @@ free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) "value there=%p\n", phba->io_sgl_free_index, phba->io_sgl_hndl_base [phba->io_sgl_free_index]); - spin_unlock_bh(&phba->io_sgl_lock); + spin_unlock_irqrestore(&phba->io_sgl_lock, flags); return; } phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle; @@ -950,7 +953,7 @@ free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) phba->io_sgl_free_index = 0; else phba->io_sgl_free_index++; - spin_unlock_bh(&phba->io_sgl_lock); + spin_unlock_irqrestore(&phba->io_sgl_lock, flags); } static inline struct wrb_handle * @@ -958,15 +961,16 @@ beiscsi_get_wrb_handle(struct hwi_wrb_context *pwrb_context, unsigned int wrbs_per_cxn) { struct wrb_handle *pwrb_handle; + unsigned long flags; - spin_lock_bh(&pwrb_context->wrb_lock); + spin_lock_irqsave(&pwrb_context->wrb_lock, flags); pwrb_handle = pwrb_context->pwrb_handle_base[pwrb_context->alloc_index]; pwrb_context->wrb_handles_available--; if (pwrb_context->alloc_index == (wrbs_per_cxn - 1)) pwrb_context->alloc_index = 0; else pwrb_context->alloc_index++; - spin_unlock_bh(&pwrb_context->wrb_lock); + spin_unlock_irqrestore(&pwrb_context->wrb_lock, flags); if (pwrb_handle) memset(pwrb_handle->pwrb, 0, sizeof(*pwrb_handle->pwrb)); @@ -1001,14 +1005,16 @@ beiscsi_put_wrb_handle(struct hwi_wrb_context *pwrb_context, struct wrb_handle *pwrb_handle, unsigned int wrbs_per_cxn) { - spin_lock_bh(&pwrb_context->wrb_lock); + unsigned long flags; + + spin_lock_irqsave(&pwrb_context->wrb_lock, flags); pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle; pwrb_context->wrb_handles_available++; if (pwrb_context->free_index == (wrbs_per_cxn - 1)) pwrb_context->free_index = 0; else pwrb_context->free_index++; - spin_unlock_bh(&pwrb_context->wrb_lock); + spin_unlock_irqrestore(&pwrb_context->wrb_lock, flags); } /** @@ -1037,8 +1043,9 @@ free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context, static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba) { struct sgl_handle *psgl_handle; + unsigned long flags; - spin_lock_bh(&phba->mgmt_sgl_lock); + spin_lock_irqsave(&phba->mgmt_sgl_lock, flags); if (phba->eh_sgl_hndl_avbl) { psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index]; phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL; @@ -1056,14 +1063,16 @@ static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba) phba->eh_sgl_alloc_index++; } else psgl_handle = NULL; - spin_unlock_bh(&phba->mgmt_sgl_lock); + spin_unlock_irqrestore(&phba->mgmt_sgl_lock, flags); return psgl_handle; } void free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) { - spin_lock_bh(&phba->mgmt_sgl_lock); + unsigned long flags; + + spin_lock_irqsave(&phba->mgmt_sgl_lock, flags); beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG, "BM_%d : In free_mgmt_sgl_handle," "eh_sgl_free_index=%d\n", @@ -1078,7 +1087,7 @@ free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) "BM_%d : Double Free in eh SGL ," "eh_sgl_free_index=%d\n", phba->eh_sgl_free_index); - spin_unlock_bh(&phba->mgmt_sgl_lock); + spin_unlock_irqrestore(&phba->mgmt_sgl_lock, flags); return; } phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle; @@ -1088,7 +1097,7 @@ free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle) phba->eh_sgl_free_index = 0; else phba->eh_sgl_free_index++; - spin_unlock_bh(&phba->mgmt_sgl_lock); + spin_unlock_irqrestore(&phba->mgmt_sgl_lock, flags); } static void diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index c051694bfcb0..f9b6fba689ff 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -791,9 +791,9 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, free_task: /* regular RX path uses back_lock */ - spin_lock_bh(&session->back_lock); + spin_lock(&session->back_lock); __iscsi_put_task(task); - spin_unlock_bh(&session->back_lock); + spin_unlock(&session->back_lock); return NULL; } diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index 396ded52ab70..209a8f7ef02b 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -1187,8 +1187,10 @@ int ion_query_heaps(struct ion_client *client, struct ion_heap_query *query) hdata.type = heap->type; hdata.heap_id = heap->id; - ret = copy_to_user(&buffer[cnt], - &hdata, sizeof(hdata)); + if (copy_to_user(&buffer[cnt], &hdata, sizeof(hdata))) { + ret = -EFAULT; + goto out; + } cnt++; if (cnt >= max_cnt) diff --git a/drivers/staging/android/ion/ion_of.c b/drivers/staging/android/ion/ion_of.c index 15bac92b7f04..46b2bb99bfd6 100644 --- a/drivers/staging/android/ion/ion_of.c +++ b/drivers/staging/android/ion/ion_of.c @@ -107,7 +107,7 @@ struct ion_platform_data *ion_parse_dt(struct platform_device *pdev, heap_pdev = of_platform_device_create(node, heaps[i].name, &pdev->dev); - if (!pdev) + if (!heap_pdev) return ERR_PTR(-ENOMEM); heap_pdev->dev.platform_data = &heaps[i]; diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c index e36ee984485b..34307ac3f255 100644 --- a/drivers/staging/greybus/arche-platform.c +++ b/drivers/staging/greybus/arche-platform.c @@ -128,6 +128,7 @@ int arche_platform_change_state(enum arche_platform_state state, pdev = of_find_device_by_node(np); if (!pdev) { pr_err("arche-platform device not found\n"); + of_node_put(np); return -ENODEV; } diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c index 071bb1cfd3ae..baab460eeaa3 100644 --- a/drivers/staging/greybus/es2.c +++ b/drivers/staging/greybus/es2.c @@ -1548,7 +1548,8 @@ static int ap_probe(struct usb_interface *interface, INIT_LIST_HEAD(&es2->arpcs); spin_lock_init(&es2->arpc_lock); - if (es2_arpc_in_enable(es2)) + retval = es2_arpc_in_enable(es2); + if (retval) goto error; retval = gb_hd_add(hd); diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c index 5e06e4229e42..250caa00de5e 100644 --- a/drivers/staging/greybus/gpio.c +++ b/drivers/staging/greybus/gpio.c @@ -702,15 +702,13 @@ static int gb_gpio_probe(struct gbphy_device *gbphy_dev, ret = gb_gpio_irqchip_add(gpio, irqc, 0, handle_level_irq, IRQ_TYPE_NONE); if (ret) { - dev_err(&connection->bundle->dev, - "failed to add irq chip: %d\n", ret); + dev_err(&gbphy_dev->dev, "failed to add irq chip: %d\n", ret); goto exit_line_free; } ret = gpiochip_add(gpio); if (ret) { - dev_err(&connection->bundle->dev, - "failed to add gpio chip: %d\n", ret); + dev_err(&gbphy_dev->dev, "failed to add gpio chip: %d\n", ret); goto exit_gpio_irqchip_remove; } diff --git a/drivers/staging/greybus/module.c b/drivers/staging/greybus/module.c index 69f67ddbd4a3..660b4674a76f 100644 --- a/drivers/staging/greybus/module.c +++ b/drivers/staging/greybus/module.c @@ -127,7 +127,7 @@ struct gb_module *gb_module_create(struct gb_host_device *hd, u8 module_id, return module; err_put_interfaces: - for (--i; i > 0; --i) + for (--i; i >= 0; --i) gb_interface_put(module->interfaces[i]); put_device(&module->dev); diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c index 5ee7954bd9f9..2633d2bfb1b4 100644 --- a/drivers/staging/greybus/uart.c +++ b/drivers/staging/greybus/uart.c @@ -888,7 +888,7 @@ static int gb_uart_probe(struct gbphy_device *gbphy_dev, minor = alloc_minor(gb_tty); if (minor < 0) { if (minor == -ENOSPC) { - dev_err(&connection->bundle->dev, + dev_err(&gbphy_dev->dev, "no more free minor numbers\n"); retval = -ENODEV; } else { diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c index d626125d7af9..564b36d4f648 100644 --- a/drivers/staging/iio/accel/sca3000_core.c +++ b/drivers/staging/iio/accel/sca3000_core.c @@ -468,6 +468,8 @@ static inline int __sca3000_get_base_freq(struct sca3000_state *st, case SCA3000_MEAS_MODE_OP_2: *base_freq = info->option_mode_2_freq; break; + default: + ret = -EINVAL; } error_ret: return ret; diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c index 6eae60595905..23fda9d98bff 100644 --- a/drivers/staging/lustre/lustre/llite/lproc_llite.c +++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c @@ -871,12 +871,10 @@ static ssize_t xattr_cache_store(struct kobject *kobj, } LUSTRE_RW_ATTR(xattr_cache); -static ssize_t unstable_stats_show(struct kobject *kobj, - struct attribute *attr, - char *buf) +static int ll_unstable_stats_seq_show(struct seq_file *m, void *v) { - struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, - ll_kobj); + struct super_block *sb = m->private; + struct ll_sb_info *sbi = ll_s2sbi(sb); struct cl_client_cache *cache = sbi->ll_cache; long pages; int mb; @@ -884,19 +882,21 @@ static ssize_t unstable_stats_show(struct kobject *kobj, pages = atomic_long_read(&cache->ccc_unstable_nr); mb = (pages * PAGE_SIZE) >> 20; - return sprintf(buf, "unstable_check: %8d\n" - "unstable_pages: %12ld\n" - "unstable_mb: %8d\n", - cache->ccc_unstable_check, pages, mb); + seq_printf(m, + "unstable_check: %8d\n" + "unstable_pages: %12ld\n" + "unstable_mb: %8d\n", + cache->ccc_unstable_check, pages, mb); + + return 0; } -static ssize_t unstable_stats_store(struct kobject *kobj, - struct attribute *attr, - const char *buffer, - size_t count) +static ssize_t ll_unstable_stats_seq_write(struct file *file, + const char __user *buffer, + size_t count, loff_t *off) { - struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, - ll_kobj); + struct super_block *sb = ((struct seq_file *)file->private_data)->private; + struct ll_sb_info *sbi = ll_s2sbi(sb); char kernbuf[128]; int val, rc; @@ -922,7 +922,7 @@ static ssize_t unstable_stats_store(struct kobject *kobj, return count; } -LUSTRE_RW_ATTR(unstable_stats); +LPROC_SEQ_FOPS(ll_unstable_stats); static ssize_t root_squash_show(struct kobject *kobj, struct attribute *attr, char *buf) @@ -995,6 +995,7 @@ static struct lprocfs_vars lprocfs_llite_obd_vars[] = { /* { "filegroups", lprocfs_rd_filegroups, 0, 0 }, */ { "max_cached_mb", &ll_max_cached_mb_fops, NULL }, { "statahead_stats", &ll_statahead_stats_fops, NULL, 0 }, + { "unstable_stats", &ll_unstable_stats_fops, NULL }, { "sbi_flags", &ll_sbi_flags_fops, NULL, 0 }, { .name = "nosquash_nids", .fops = &ll_nosquash_nids_fops }, @@ -1026,7 +1027,6 @@ static struct attribute *llite_attrs[] = { &lustre_attr_max_easize.attr, &lustre_attr_default_easize.attr, &lustre_attr_xattr_cache.attr, - &lustre_attr_unstable_stats.attr, &lustre_attr_root_squash.attr, NULL, }; diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 78f5613e9467..6ab7443eabde 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3388,7 +3388,6 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) clients_count++; - destroy_workqueue(hif_workqueue); _fail_: return result; } diff --git a/drivers/thermal/intel_pch_thermal.c b/drivers/thermal/intel_pch_thermal.c index 9b4815e81b0d..19bf2028e508 100644 --- a/drivers/thermal/intel_pch_thermal.c +++ b/drivers/thermal/intel_pch_thermal.c @@ -20,10 +20,13 @@ #include #include #include +#include #include #include /* Intel PCH thermal Device IDs */ +#define PCH_THERMAL_DID_HSW_1 0x9C24 /* Haswell PCH */ +#define PCH_THERMAL_DID_HSW_2 0x8C24 /* Haswell PCH */ #define PCH_THERMAL_DID_WPT 0x9CA4 /* Wildcat Point */ #define PCH_THERMAL_DID_SKL 0x9D31 /* Skylake PCH */ @@ -66,9 +69,53 @@ struct pch_thermal_device { unsigned long crt_temp; int hot_trip_id; unsigned long hot_temp; + int psv_trip_id; + unsigned long psv_temp; bool bios_enabled; }; +#ifdef CONFIG_ACPI + +/* + * On some platforms, there is a companion ACPI device, which adds + * passive trip temperature using _PSV method. There is no specific + * passive temperature setting in MMIO interface of this PCI device. + */ +static void pch_wpt_add_acpi_psv_trip(struct pch_thermal_device *ptd, + int *nr_trips) +{ + struct acpi_device *adev; + + ptd->psv_trip_id = -1; + + adev = ACPI_COMPANION(&ptd->pdev->dev); + if (adev) { + unsigned long long r; + acpi_status status; + + status = acpi_evaluate_integer(adev->handle, "_PSV", NULL, + &r); + if (ACPI_SUCCESS(status)) { + unsigned long trip_temp; + + trip_temp = DECI_KELVIN_TO_MILLICELSIUS(r); + if (trip_temp) { + ptd->psv_temp = trip_temp; + ptd->psv_trip_id = *nr_trips; + ++(*nr_trips); + } + } + } +} +#else +static void pch_wpt_add_acpi_psv_trip(struct pch_thermal_device *ptd, + int *nr_trips) +{ + ptd->psv_trip_id = -1; + +} +#endif + static int pch_wpt_init(struct pch_thermal_device *ptd, int *nr_trips) { u8 tsel; @@ -119,6 +166,8 @@ read_trips: ++(*nr_trips); } + pch_wpt_add_acpi_psv_trip(ptd, nr_trips); + return 0; } @@ -194,6 +243,8 @@ static int pch_get_trip_type(struct thermal_zone_device *tzd, int trip, *type = THERMAL_TRIP_CRITICAL; else if (ptd->hot_trip_id == trip) *type = THERMAL_TRIP_HOT; + else if (ptd->psv_trip_id == trip) + *type = THERMAL_TRIP_PASSIVE; else return -EINVAL; @@ -208,6 +259,8 @@ static int pch_get_trip_temp(struct thermal_zone_device *tzd, int trip, int *tem *temp = ptd->crt_temp; else if (ptd->hot_trip_id == trip) *temp = ptd->hot_temp; + else if (ptd->psv_trip_id == trip) + *temp = ptd->psv_temp; else return -EINVAL; @@ -242,6 +295,11 @@ static int intel_pch_thermal_probe(struct pci_dev *pdev, ptd->ops = &pch_dev_ops_wpt; dev_name = "pch_skylake"; break; + case PCH_THERMAL_DID_HSW_1: + case PCH_THERMAL_DID_HSW_2: + ptd->ops = &pch_dev_ops_wpt; + dev_name = "pch_haswell"; + break; default: dev_err(&pdev->dev, "unknown pch thermal device\n"); return -ENODEV; @@ -324,6 +382,8 @@ static int intel_pch_thermal_resume(struct device *device) static struct pci_device_id intel_pch_thermal_id[] = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_WPT) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_SKL) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_HSW_1) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_HSW_2) }, { 0, }, }; MODULE_DEVICE_TABLE(pci, intel_pch_thermal_id); diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c index 0e4dc0afcfd2..7a223074df3d 100644 --- a/drivers/thermal/intel_powerclamp.c +++ b/drivers/thermal/intel_powerclamp.c @@ -669,20 +669,10 @@ static struct thermal_cooling_device_ops powerclamp_cooling_ops = { .set_cur_state = powerclamp_set_cur_state, }; -static const struct x86_cpu_id intel_powerclamp_ids[] __initconst = { - { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_MWAIT }, - { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_ARAT }, - { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_NONSTOP_TSC }, - { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_CONSTANT_TSC}, - {} -}; -MODULE_DEVICE_TABLE(x86cpu, intel_powerclamp_ids); - static int __init powerclamp_probe(void) { - if (!x86_match_cpu(intel_powerclamp_ids)) { - pr_err("Intel powerclamp does not run on family %d model %d\n", - boot_cpu_data.x86, boot_cpu_data.x86_model); + if (!boot_cpu_has(X86_FEATURE_MWAIT)) { + pr_err("CPU does not support MWAIT"); return -ENODEV; } diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c index 886fcf37f291..b9923464599f 100644 --- a/drivers/tty/serial/8250/8250_lpss.c +++ b/drivers/tty/serial/8250/8250_lpss.c @@ -213,7 +213,7 @@ static int qrk_serial_setup(struct lpss8250 *lpss, struct uart_port *port) struct pci_dev *pdev = to_pci_dev(port->dev); int ret; - ret = pci_alloc_irq_vectors(pdev, 1, 1, 0); + ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES); if (ret < 0) return ret; diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index 1bfb6fdbaa20..1731b98d2471 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -83,7 +83,8 @@ static const struct serial8250_config uart_config[] = { .name = "16550A", .fifo_size = 16, .tx_loadsz = 16, - .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10, + .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10 | + UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT, .rxtrig_bytes = {1, 4, 8, 14}, .flags = UART_CAP_FIFO, }, diff --git a/drivers/tty/serial/8250/8250_uniphier.c b/drivers/tty/serial/8250/8250_uniphier.c index b8d9c8c9d02a..417d9e7038e1 100644 --- a/drivers/tty/serial/8250/8250_uniphier.c +++ b/drivers/tty/serial/8250/8250_uniphier.c @@ -99,7 +99,7 @@ static void uniphier_serial_out(struct uart_port *p, int offset, int value) case UART_LCR: valshift = UNIPHIER_UART_LCR_SHIFT; /* Divisor latch access bit does not exist. */ - value &= ~(UART_LCR_DLAB << valshift); + value &= ~UART_LCR_DLAB; /* fall through */ case UART_MCR: offset = UNIPHIER_UART_LCR_MCR; @@ -199,7 +199,7 @@ static int uniphier_uart_probe(struct platform_device *pdev) regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!regs) { - dev_err(dev, "failed to get memory resource"); + dev_err(dev, "failed to get memory resource\n"); return -EINVAL; } diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index c7831407a882..25c1d7bc0100 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1625,6 +1625,7 @@ config SERIAL_SPRD_CONSOLE config SERIAL_STM32 tristate "STMicroelectronics STM32 serial port support" select SERIAL_CORE + depends on HAS_DMA depends on ARM || COMPILE_TEST help This driver is for the on-chip Serial Controller on diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index fd8aa1f4ba78..168b10cad47b 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -2132,11 +2132,29 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, mode |= ATMEL_US_USMODE_RS485; } else if (termios->c_cflag & CRTSCTS) { /* RS232 with hardware handshake (RTS/CTS) */ - if (atmel_use_dma_rx(port) && !atmel_use_fifo(port)) { - dev_info(port->dev, "not enabling hardware flow control because DMA is used"); - termios->c_cflag &= ~CRTSCTS; - } else { + if (atmel_use_fifo(port) && + !mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_CTS)) { + /* + * with ATMEL_US_USMODE_HWHS set, the controller will + * be able to drive the RTS pin high/low when the RX + * FIFO is above RXFTHRES/below RXFTHRES2. + * It will also disable the transmitter when the CTS + * pin is high. + * This mode is not activated if CTS pin is a GPIO + * because in this case, the transmitter is always + * disabled (there must be an internal pull-up + * responsible for this behaviour). + * If the RTS pin is a GPIO, the controller won't be + * able to drive it according to the FIFO thresholds, + * but it will be handled by the driver. + */ mode |= ATMEL_US_USMODE_HWHS; + } else { + /* + * For platforms without FIFO, the flow control is + * handled by the driver. + */ + mode |= ATMEL_US_USMODE_NORMAL; } } else { /* RS232 without hadware handshake */ diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index de9d5107c00a..76103f2c4a80 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -328,7 +328,7 @@ static void lpuart_dma_tx(struct lpuart_port *sport) sport->dma_tx_bytes = uart_circ_chars_pending(xmit); - if (xmit->tail < xmit->head) { + if (xmit->tail < xmit->head || xmit->head == 0) { sport->dma_tx_nents = 1; sg_init_one(sgl, xmit->buf + xmit->tail, sport->dma_tx_bytes); } else { @@ -359,7 +359,6 @@ static void lpuart_dma_tx(struct lpuart_port *sport) sport->dma_tx_in_progress = true; sport->dma_tx_cookie = dmaengine_submit(sport->dma_tx_desc); dma_async_issue_pending(sport->dma_tx_chan); - } static void lpuart_dma_tx_complete(void *arg) diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index d391650b82e7..42caccb5e87e 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -419,6 +419,7 @@ static struct dmi_system_id pch_uart_dmi_table[] = { }, (void *)MINNOW_UARTCLK, }, + { } }; /* Return UART clock, checking for board specific clocks. */ diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 2675792a8f59..fb0672554123 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1130,9 +1130,13 @@ static int sc16is7xx_gpio_direction_output(struct gpio_chip *chip, { struct sc16is7xx_port *s = gpiochip_get_data(chip); struct uart_port *port = &s->p[0].port; + u8 state = sc16is7xx_port_read(port, SC16IS7XX_IOSTATE_REG); - sc16is7xx_port_update(port, SC16IS7XX_IOSTATE_REG, BIT(offset), - val ? BIT(offset) : 0); + if (val) + state |= BIT(offset); + else + state &= ~BIT(offset); + sc16is7xx_port_write(port, SC16IS7XX_IOSTATE_REG, state); sc16is7xx_port_update(port, SC16IS7XX_IODIR_REG, BIT(offset), BIT(offset)); diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 6e4f63627479..f2303f390345 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -111,7 +111,7 @@ void uart_write_wakeup(struct uart_port *port) * closed. No cookie for you. */ BUG_ON(!state); - tty_wakeup(state->port.tty); + tty_port_tty_wakeup(&state->port); } static void uart_stop(struct tty_struct *tty) @@ -632,7 +632,7 @@ static void uart_flush_buffer(struct tty_struct *tty) if (port->ops->flush_buffer) port->ops->flush_buffer(port); uart_port_unlock(port, flags); - tty_wakeup(tty); + tty_port_tty_wakeup(&state->port); } /* @@ -2746,8 +2746,6 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *uport) uport->cons = drv->cons; uport->minor = drv->tty_driver->minor_start + uport->line; - port->console = uart_console(uport); - /* * If this port is a console, then the spinlock is already * initialised. @@ -2761,6 +2759,8 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *uport) uart_configure_port(drv, state, uport); + port->console = uart_console(uport); + num_groups = 2; if (uport->attr_group) num_groups++; diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h index 41d974923102..cd97ceb76e4f 100644 --- a/drivers/tty/serial/stm32-usart.h +++ b/drivers/tty/serial/stm32-usart.h @@ -31,7 +31,7 @@ struct stm32_usart_info { struct stm32_usart_config cfg; }; -#define UNDEF_REG ~0 +#define UNDEF_REG 0xff /* Register offsets */ struct stm32_usart_info stm32f4_info = { diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index f37edaa5ac75..dd4c02fa4820 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -1200,6 +1200,7 @@ static int __init cdns_early_console_setup(struct earlycon_device *device, OF_EARLYCON_DECLARE(cdns, "xlnx,xuartps", cdns_early_console_setup); OF_EARLYCON_DECLARE(cdns, "cdns,uart-r1p8", cdns_early_console_setup); OF_EARLYCON_DECLARE(cdns, "cdns,uart-r1p12", cdns_early_console_setup); +OF_EARLYCON_DECLARE(cdns, "xlnx,zynqmp-uart", cdns_early_console_setup); /** * cdns_uart_console_write - perform write operation @@ -1438,6 +1439,7 @@ static const struct of_device_id cdns_uart_of_match[] = { { .compatible = "xlnx,xuartps", }, { .compatible = "cdns,uart-r1p8", }, { .compatible = "cdns,uart-r1p12", .data = &zynqmp_uart_def }, + { .compatible = "xlnx,zynqmp-uart", .data = &zynqmp_uart_def }, {} }; MODULE_DEVICE_TABLE(of, cdns_uart_of_match); diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 06fb39c1d6dd..8c3bf3d613c0 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -870,10 +870,15 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc, if (new_cols == vc->vc_cols && new_rows == vc->vc_rows) return 0; + if (new_screen_size > (4 << 20)) + return -EINVAL; newscreen = kmalloc(new_screen_size, GFP_USER); if (!newscreen) return -ENOMEM; + if (vc == sel_cons) + clear_selection(); + old_rows = vc->vc_rows; old_row_size = vc->vc_size_row; @@ -1176,7 +1181,7 @@ static void csi_J(struct vc_data *vc, int vpar) break; case 3: /* erase scroll-back buffer (and whole display) */ scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char, - vc->vc_screenbuf_size >> 1); + vc->vc_screenbuf_size); set_origin(vc); if (con_is_visible(vc)) update_screen(vc); diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 96ae69502c86..111b0e0b8698 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -188,6 +188,8 @@ static void host_stop(struct ci_hdrc *ci) if (hcd) { usb_remove_hcd(hcd); + ci->role = CI_ROLE_END; + synchronize_irq(ci->irq); usb_put_hcd(hcd); if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci) && (ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON)) diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index fa9b26b91507..4c0fa0b17353 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -463,9 +463,18 @@ static void dwc2_clear_force_mode(struct dwc2_hsotg *hsotg) */ void dwc2_force_dr_mode(struct dwc2_hsotg *hsotg) { + bool ret; + switch (hsotg->dr_mode) { case USB_DR_MODE_HOST: - dwc2_force_mode(hsotg, true); + ret = dwc2_force_mode(hsotg, true); + /* + * NOTE: This is required for some rockchip soc based + * platforms on their host-only dwc2. + */ + if (!ret) + msleep(50); + break; case USB_DR_MODE_PERIPHERAL: dwc2_force_mode(hsotg, false); diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index aad4107ef927..2a21a0414b1d 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -259,6 +259,13 @@ enum dwc2_lx_state { DWC2_L3, /* Off state */ }; +/* + * Gadget periodic tx fifo sizes as used by legacy driver + * EP0 is not included + */ +#define DWC2_G_P_LEGACY_TX_FIFO_SIZE {256, 256, 256, 256, 768, 768, 768, \ + 768, 0, 0, 0, 0, 0, 0, 0} + /* Gadget ep0 states */ enum dwc2_ep0_state { DWC2_EP0_SETUP, diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 4cd6403a7566..24fbebc9b409 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -186,10 +186,9 @@ static void dwc2_hsotg_ctrl_epint(struct dwc2_hsotg *hsotg, */ static void dwc2_hsotg_init_fifo(struct dwc2_hsotg *hsotg) { - unsigned int fifo; + unsigned int ep; unsigned int addr; int timeout; - u32 dptxfsizn; u32 val; /* Reset fifo map if not correctly cleared during previous session */ @@ -217,16 +216,16 @@ static void dwc2_hsotg_init_fifo(struct dwc2_hsotg *hsotg) * them to endpoints dynamically according to maxpacket size value of * given endpoint. */ - for (fifo = 1; fifo < MAX_EPS_CHANNELS; fifo++) { - dptxfsizn = dwc2_readl(hsotg->regs + DPTXFSIZN(fifo)); - - val = (dptxfsizn & FIFOSIZE_DEPTH_MASK) | addr; - addr += dptxfsizn >> FIFOSIZE_DEPTH_SHIFT; - - if (addr > hsotg->fifo_mem) - break; + for (ep = 1; ep < MAX_EPS_CHANNELS; ep++) { + if (!hsotg->g_tx_fifo_sz[ep]) + continue; + val = addr; + val |= hsotg->g_tx_fifo_sz[ep] << FIFOSIZE_DEPTH_SHIFT; + WARN_ONCE(addr + hsotg->g_tx_fifo_sz[ep] > hsotg->fifo_mem, + "insufficient fifo memory"); + addr += hsotg->g_tx_fifo_sz[ep]; - dwc2_writel(val, hsotg->regs + DPTXFSIZN(fifo)); + dwc2_writel(val, hsotg->regs + DPTXFSIZN(ep)); } /* @@ -3807,10 +3806,36 @@ static void dwc2_hsotg_dump(struct dwc2_hsotg *hsotg) static void dwc2_hsotg_of_probe(struct dwc2_hsotg *hsotg) { struct device_node *np = hsotg->dev->of_node; + u32 len = 0; + u32 i = 0; /* Enable dma if requested in device tree */ hsotg->g_using_dma = of_property_read_bool(np, "g-use-dma"); + /* + * Register TX periodic fifo size per endpoint. + * EP0 is excluded since it has no fifo configuration. + */ + if (!of_find_property(np, "g-tx-fifo-size", &len)) + goto rx_fifo; + + len /= sizeof(u32); + + /* Read tx fifo sizes other than ep0 */ + if (of_property_read_u32_array(np, "g-tx-fifo-size", + &hsotg->g_tx_fifo_sz[1], len)) + goto rx_fifo; + + /* Add ep0 */ + len++; + + /* Make remaining TX fifos unavailable */ + if (len < MAX_EPS_CHANNELS) { + for (i = len; i < MAX_EPS_CHANNELS; i++) + hsotg->g_tx_fifo_sz[i] = 0; + } + +rx_fifo: /* Register RX fifo size */ of_property_read_u32(np, "g-rx-fifo-size", &hsotg->g_rx_fifo_sz); @@ -3832,10 +3857,13 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq) struct device *dev = hsotg->dev; int epnum; int ret; + int i; + u32 p_tx_fifo[] = DWC2_G_P_LEGACY_TX_FIFO_SIZE; /* Initialize to legacy fifo configuration values */ hsotg->g_rx_fifo_sz = 2048; hsotg->g_np_g_tx_fifo_sz = 1024; + memcpy(&hsotg->g_tx_fifo_sz[1], p_tx_fifo, sizeof(p_tx_fifo)); /* Device tree specific probe */ dwc2_hsotg_of_probe(hsotg); @@ -3853,6 +3881,9 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq) dev_dbg(dev, "NonPeriodic TXFIFO size: %d\n", hsotg->g_np_g_tx_fifo_sz); dev_dbg(dev, "RXFIFO size: %d\n", hsotg->g_rx_fifo_sz); + for (i = 0; i < MAX_EPS_CHANNELS; i++) + dev_dbg(dev, "Periodic TXFIFO%2d size: %d\n", i, + hsotg->g_tx_fifo_sz[i]); hsotg->gadget.max_speed = USB_SPEED_HIGH; hsotg->gadget.ops = &dwc2_hsotg_gadget_ops; diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 07cc8929f271..1dfa56a5f1c5 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -783,6 +783,7 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, req->trb = trb; req->trb_dma = dwc3_trb_dma_offset(dep, trb); req->first_trb_index = dep->trb_enqueue; + dep->queued_requests++; } dwc3_ep_inc_enq(dep); @@ -833,8 +834,6 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep, trb->ctrl |= DWC3_TRB_CTRL_HWO; - dep->queued_requests++; - trace_dwc3_prepare_trb(dep, trb); } @@ -1074,9 +1073,17 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) list_add_tail(&req->list, &dep->pending_list); - if (usb_endpoint_xfer_isoc(dep->endpoint.desc) && - dep->flags & DWC3_EP_PENDING_REQUEST) { - if (list_empty(&dep->started_list)) { + /* + * NOTICE: Isochronous endpoints should NEVER be prestarted. We must + * wait for a XferNotReady event so we will know what's the current + * (micro-)frame number. + * + * Without this trick, we are very, very likely gonna get Bus Expiry + * errors which will force us issue EndTransfer command. + */ + if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) { + if ((dep->flags & DWC3_EP_PENDING_REQUEST) && + list_empty(&dep->started_list)) { dwc3_stop_active_transfer(dwc, dep->number, true); dep->flags = DWC3_EP_ENABLED; } @@ -1861,8 +1868,11 @@ static int __dwc3_cleanup_done_trbs(struct dwc3 *dwc, struct dwc3_ep *dep, unsigned int s_pkt = 0; unsigned int trb_status; - dep->queued_requests--; dwc3_ep_inc_deq(dep); + + if (req->trb == trb) + dep->queued_requests--; + trace_dwc3_complete_trb(dep, trb); /* @@ -2980,7 +2990,7 @@ err3: kfree(dwc->setup_buf); err2: - dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb), + dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb) * 2, dwc->ep0_trb, dwc->ep0_trb_addr); err1: @@ -3005,7 +3015,7 @@ void dwc3_gadget_exit(struct dwc3 *dwc) kfree(dwc->setup_buf); kfree(dwc->zlp_buf); - dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb), + dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb) * 2, dwc->ep0_trb, dwc->ep0_trb_addr); dma_free_coherent(dwc->dev, sizeof(*dwc->ctrl_req), diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 54ad100af35b..e40d47d47d82 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -136,8 +136,60 @@ struct ffs_epfile { /* * Buffer for holding data from partial reads which may happen since * we’re rounding user read requests to a multiple of a max packet size. + * + * The pointer is initialised with NULL value and may be set by + * __ffs_epfile_read_data function to point to a temporary buffer. + * + * In normal operation, calls to __ffs_epfile_read_buffered will consume + * data from said buffer and eventually free it. Importantly, while the + * function is using the buffer, it sets the pointer to NULL. This is + * all right since __ffs_epfile_read_data and __ffs_epfile_read_buffered + * can never run concurrently (they are synchronised by epfile->mutex) + * so the latter will not assign a new value to the pointer. + * + * Meanwhile ffs_func_eps_disable frees the buffer (if the pointer is + * valid) and sets the pointer to READ_BUFFER_DROP value. This special + * value is crux of the synchronisation between ffs_func_eps_disable and + * __ffs_epfile_read_data. + * + * Once __ffs_epfile_read_data is about to finish it will try to set the + * pointer back to its old value (as described above), but seeing as the + * pointer is not-NULL (namely READ_BUFFER_DROP) it will instead free + * the buffer. + * + * == State transitions == + * + * • ptr == NULL: (initial state) + * ◦ __ffs_epfile_read_buffer_free: go to ptr == DROP + * ◦ __ffs_epfile_read_buffered: nop + * ◦ __ffs_epfile_read_data allocates temp buffer: go to ptr == buf + * ◦ reading finishes: n/a, not in ‘and reading’ state + * • ptr == DROP: + * ◦ __ffs_epfile_read_buffer_free: nop + * ◦ __ffs_epfile_read_buffered: go to ptr == NULL + * ◦ __ffs_epfile_read_data allocates temp buffer: free buf, nop + * ◦ reading finishes: n/a, not in ‘and reading’ state + * • ptr == buf: + * ◦ __ffs_epfile_read_buffer_free: free buf, go to ptr == DROP + * ◦ __ffs_epfile_read_buffered: go to ptr == NULL and reading + * ◦ __ffs_epfile_read_data: n/a, __ffs_epfile_read_buffered + * is always called first + * ◦ reading finishes: n/a, not in ‘and reading’ state + * • ptr == NULL and reading: + * ◦ __ffs_epfile_read_buffer_free: go to ptr == DROP and reading + * ◦ __ffs_epfile_read_buffered: n/a, mutex is held + * ◦ __ffs_epfile_read_data: n/a, mutex is held + * ◦ reading finishes and … + * … all data read: free buf, go to ptr == NULL + * … otherwise: go to ptr == buf and reading + * • ptr == DROP and reading: + * ◦ __ffs_epfile_read_buffer_free: nop + * ◦ __ffs_epfile_read_buffered: n/a, mutex is held + * ◦ __ffs_epfile_read_data: n/a, mutex is held + * ◦ reading finishes: free buf, go to ptr == DROP */ - struct ffs_buffer *read_buffer; /* P: epfile->mutex */ + struct ffs_buffer *read_buffer; +#define READ_BUFFER_DROP ((struct ffs_buffer *)ERR_PTR(-ESHUTDOWN)) char name[5]; @@ -736,25 +788,47 @@ static void ffs_epfile_async_io_complete(struct usb_ep *_ep, schedule_work(&io_data->work); } +static void __ffs_epfile_read_buffer_free(struct ffs_epfile *epfile) +{ + /* + * See comment in struct ffs_epfile for full read_buffer pointer + * synchronisation story. + */ + struct ffs_buffer *buf = xchg(&epfile->read_buffer, READ_BUFFER_DROP); + if (buf && buf != READ_BUFFER_DROP) + kfree(buf); +} + /* Assumes epfile->mutex is held. */ static ssize_t __ffs_epfile_read_buffered(struct ffs_epfile *epfile, struct iov_iter *iter) { - struct ffs_buffer *buf = epfile->read_buffer; + /* + * Null out epfile->read_buffer so ffs_func_eps_disable does not free + * the buffer while we are using it. See comment in struct ffs_epfile + * for full read_buffer pointer synchronisation story. + */ + struct ffs_buffer *buf = xchg(&epfile->read_buffer, NULL); ssize_t ret; - if (!buf) + if (!buf || buf == READ_BUFFER_DROP) return 0; ret = copy_to_iter(buf->data, buf->length, iter); if (buf->length == ret) { kfree(buf); - epfile->read_buffer = NULL; - } else if (unlikely(iov_iter_count(iter))) { + return ret; + } + + if (unlikely(iov_iter_count(iter))) { ret = -EFAULT; } else { buf->length -= ret; buf->data += ret; } + + if (cmpxchg(&epfile->read_buffer, NULL, buf)) + kfree(buf); + return ret; } @@ -783,7 +857,15 @@ static ssize_t __ffs_epfile_read_data(struct ffs_epfile *epfile, buf->length = data_len; buf->data = buf->storage; memcpy(buf->storage, data + ret, data_len); - epfile->read_buffer = buf; + + /* + * At this point read_buffer is NULL or READ_BUFFER_DROP (if + * ffs_func_eps_disable has been called in the meanwhile). See comment + * in struct ffs_epfile for full read_buffer pointer synchronisation + * story. + */ + if (unlikely(cmpxchg(&epfile->read_buffer, NULL, buf))) + kfree(buf); return ret; } @@ -1097,8 +1179,7 @@ ffs_epfile_release(struct inode *inode, struct file *file) ENTER(); - kfree(epfile->read_buffer); - epfile->read_buffer = NULL; + __ffs_epfile_read_buffer_free(epfile); ffs_data_closed(epfile->ffs); return 0; @@ -1724,24 +1805,20 @@ static void ffs_func_eps_disable(struct ffs_function *func) unsigned count = func->ffs->eps_count; unsigned long flags; + spin_lock_irqsave(&func->ffs->eps_lock, flags); do { - if (epfile) - mutex_lock(&epfile->mutex); - spin_lock_irqsave(&func->ffs->eps_lock, flags); /* pending requests get nuked */ if (likely(ep->ep)) usb_ep_disable(ep->ep); ++ep; - spin_unlock_irqrestore(&func->ffs->eps_lock, flags); if (epfile) { epfile->ep = NULL; - kfree(epfile->read_buffer); - epfile->read_buffer = NULL; - mutex_unlock(&epfile->mutex); + __ffs_epfile_read_buffer_free(epfile); ++epfile; } } while (--count); + spin_unlock_irqrestore(&func->ffs->eps_lock, flags); } static int ffs_func_eps_enable(struct ffs_function *func) diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c index 9c8c9ed1dc9e..fe1811650dbc 100644 --- a/drivers/usb/gadget/function/u_ether.c +++ b/drivers/usb/gadget/function/u_ether.c @@ -590,8 +590,9 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb, /* throttle high/super speed IRQ rate back slightly */ if (gadget_is_dualspeed(dev->gadget)) - req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH || - dev->gadget->speed == USB_SPEED_SUPER) + req->no_interrupt = (((dev->gadget->speed == USB_SPEED_HIGH || + dev->gadget->speed == USB_SPEED_SUPER)) && + !list_empty(&dev->tx_reqs)) ? ((atomic_read(&dev->tx_qlen) % dev->qmult) != 0) : 0; diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index bb1f6c8f0f01..45bc997d0711 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -1978,7 +1978,7 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, dev_err(&pdev->dev, "of_probe: name error(%d)\n", ret); goto err; } - ep->ep.name = name; + ep->ep.name = kasprintf(GFP_KERNEL, "ep%d", ep->index); ep->ep_regs = udc->regs + USBA_EPT_BASE(i); ep->dma_regs = udc->regs + USBA_DMA_BASE(i); diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 876dca4fc216..a268d9e8d6cf 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -39,7 +39,7 @@ #define DRIVER_DESC "EHCI generic platform driver" #define EHCI_MAX_CLKS 4 -#define EHCI_MAX_RSTS 3 +#define EHCI_MAX_RSTS 4 #define hcd_to_ehci_priv(h) ((struct ehci_platform_priv *)hcd_to_ehci(h)->priv) struct ehci_platform_priv { diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 5b5880c0ae19..b38a228134df 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -221,6 +221,12 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, ohci->num_ports = board->ports; at91_start_hc(pdev); + /* + * The RemoteWakeupConnected bit has to be set explicitly + * before calling ohci_run. The reset value of this bit is 0. + */ + ohci->hc_control = OHCI_CTRL_RWC; + retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval == 0) { device_wakeup_enable(hcd->self.controller); @@ -677,9 +683,6 @@ ohci_hcd_at91_drv_suspend(struct device *dev) * REVISIT: some boards will be able to turn VBUS off... */ if (!ohci_at91->wakeup) { - ohci->hc_control = ohci_readl(ohci, &ohci->regs->control); - ohci->hc_control &= OHCI_CTRL_RWC; - ohci_writel(ohci, ohci->hc_control, &ohci->regs->control); ohci->rh_state = OHCI_RH_HALTED; /* flush the writes */ diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 1700908b84ef..86612ac3fda2 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -72,7 +72,7 @@ static const char hcd_name [] = "ohci_hcd"; #define STATECHANGE_DELAY msecs_to_jiffies(300) -#define IO_WATCHDOG_DELAY msecs_to_jiffies(250) +#define IO_WATCHDOG_DELAY msecs_to_jiffies(275) #include "ohci.h" #include "pci-quirks.h" diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 730b9fd26685..0ef16900efed 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -1166,7 +1166,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, xhci_set_link_state(xhci, port_array, wIndex, XDEV_RESUME); spin_unlock_irqrestore(&xhci->lock, flags); - msleep(20); + msleep(USB_RESUME_TIMEOUT); spin_lock_irqsave(&xhci->lock, flags); xhci_set_link_state(xhci, port_array, wIndex, XDEV_U0); @@ -1355,6 +1355,35 @@ int xhci_bus_suspend(struct usb_hcd *hcd) return 0; } +/* + * Workaround for missing Cold Attach Status (CAS) if device re-plugged in S3. + * warm reset a USB3 device stuck in polling or compliance mode after resume. + * See Intel 100/c230 series PCH specification update Doc #332692-006 Errata #8 + */ +static bool xhci_port_missing_cas_quirk(int port_index, + __le32 __iomem **port_array) +{ + u32 portsc; + + portsc = readl(port_array[port_index]); + + /* if any of these are set we are not stuck */ + if (portsc & (PORT_CONNECT | PORT_CAS)) + return false; + + if (((portsc & PORT_PLS_MASK) != XDEV_POLLING) && + ((portsc & PORT_PLS_MASK) != XDEV_COMP_MODE)) + return false; + + /* clear wakeup/change bits, and do a warm port reset */ + portsc &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS); + portsc |= PORT_WR; + writel(portsc, port_array[port_index]); + /* flush write */ + readl(port_array[port_index]); + return true; +} + int xhci_bus_resume(struct usb_hcd *hcd) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); @@ -1392,6 +1421,14 @@ int xhci_bus_resume(struct usb_hcd *hcd) u32 temp; temp = readl(port_array[port_index]); + + /* warm reset CAS limited ports stuck in polling/compliance */ + if ((xhci->quirks & XHCI_MISSING_CAS) && + (hcd->speed >= HCD_USB3) && + xhci_port_missing_cas_quirk(port_index, port_array)) { + xhci_dbg(xhci, "reset stuck port %d\n", port_index); + continue; + } if (DEV_SUPERSPEED_ANY(temp)) temp &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS); else @@ -1410,7 +1447,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) if (need_usb2_u3_exit) { spin_unlock_irqrestore(&xhci->lock, flags); - msleep(20); + msleep(USB_RESUME_TIMEOUT); spin_lock_irqsave(&xhci->lock, flags); } diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index d7b0f97abbad..e96ae80d107e 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -45,11 +45,13 @@ #define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 +#define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI 0x9cb1 #define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI 0x22b5 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI 0xa12f #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI 0x9d2f #define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI 0x0aa8 #define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI 0x1aa8 +#define PCI_DEVICE_ID_INTEL_APL_XHCI 0x5aa8 static const char hcd_name[] = "xhci_hcd"; @@ -153,7 +155,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_SPURIOUS_REBOOT; } if (pdev->vendor == PCI_VENDOR_ID_INTEL && - pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) { + (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_XHCI)) { xhci->quirks |= XHCI_SPURIOUS_REBOOT; xhci->quirks |= XHCI_SPURIOUS_WAKEUP; } @@ -169,6 +172,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI) { xhci->quirks |= XHCI_SSIC_PORT_UNUSED; } + if (pdev->vendor == PCI_VENDOR_ID_INTEL && + (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI)) + xhci->quirks |= XHCI_MISSING_CAS; + if (pdev->vendor == PCI_VENDOR_ID_ETRON && pdev->device == PCI_DEVICE_ID_EJ168) { xhci->quirks |= XHCI_RESET_ON_RESUME; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index b2c1dc5dc0f3..f945380035d0 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -314,6 +314,8 @@ struct xhci_op_regs { #define XDEV_U2 (0x2 << 5) #define XDEV_U3 (0x3 << 5) #define XDEV_INACTIVE (0x6 << 5) +#define XDEV_POLLING (0x7 << 5) +#define XDEV_COMP_MODE (0xa << 5) #define XDEV_RESUME (0xf << 5) /* true: port has power (see HCC_PPC) */ #define PORT_POWER (1 << 9) @@ -1653,6 +1655,7 @@ struct xhci_hcd { #define XHCI_MTK_HOST (1 << 21) #define XHCI_SSIC_PORT_UNUSED (1 << 22) #define XHCI_NO_64BIT_SUPPORT (1 << 23) +#define XHCI_MISSING_CAS (1 << 24) unsigned int num_active_eps; unsigned int limit_active_eps; /* There are two roothubs to keep track of bus suspend info for */ diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index bff4869a57cd..4042ea017985 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1255,6 +1255,7 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req, map_dma_buffer(request, musb, musb_ep); + pm_runtime_get_sync(musb->controller); spin_lock_irqsave(&musb->lock, lockflags); /* don't queue if the ep is down */ @@ -1275,6 +1276,9 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req, unlock: spin_unlock_irqrestore(&musb->lock, lockflags); + pm_runtime_mark_last_busy(musb->controller); + pm_runtime_put_autosuspend(musb->controller); + return status; } diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 1ab6973d4f61..cc1225485509 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -287,6 +287,7 @@ static int omap2430_musb_init(struct musb *musb) } musb->isr = omap2430_musb_interrupt; phy_init(musb->phy); + phy_power_on(musb->phy); l = musb_readl(musb->mregs, OTG_INTERFSEL); @@ -323,8 +324,6 @@ static void omap2430_musb_enable(struct musb *musb) struct musb_hdrc_platform_data *pdata = dev_get_platdata(dev); struct omap_musb_board_data *data = pdata->board_data; - if (!WARN_ON(!musb->phy)) - phy_power_on(musb->phy); switch (glue->status) { @@ -361,9 +360,6 @@ static void omap2430_musb_disable(struct musb *musb) struct device *dev = musb->controller; struct omap2430_glue *glue = dev_get_drvdata(dev->parent); - if (!WARN_ON(!musb->phy)) - phy_power_off(musb->phy); - if (glue->status != MUSB_UNKNOWN) omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DISCONNECT); @@ -375,6 +371,7 @@ static int omap2430_musb_exit(struct musb *musb) struct omap2430_glue *glue = dev_get_drvdata(dev->parent); omap2430_low_level_exit(musb); + phy_power_off(musb->phy); phy_exit(musb->phy); musb->phy = NULL; cancel_work_sync(&glue->omap_musb_mailbox_work); diff --git a/drivers/usb/renesas_usbhs/rcar3.c b/drivers/usb/renesas_usbhs/rcar3.c index 1d70add926f0..d544b331c9f2 100644 --- a/drivers/usb/renesas_usbhs/rcar3.c +++ b/drivers/usb/renesas_usbhs/rcar3.c @@ -9,6 +9,7 @@ * */ +#include #include #include "common.h" #include "rcar3.h" @@ -35,10 +36,13 @@ static int usbhs_rcar3_power_ctrl(struct platform_device *pdev, usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 | UGCTRL2_USB0SEL_OTG); - if (enable) + if (enable) { usbhs_bset(priv, LPSTS, LPSTS_SUSPM, LPSTS_SUSPM); - else + /* The controller on R-Car Gen3 needs to wait up to 45 usec */ + udelay(45); + } else { usbhs_bset(priv, LPSTS, LPSTS_SUSPM, 0); + } return 0; } diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 54a4de0efdba..f61477bed3a8 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -1077,7 +1077,9 @@ static int cp210x_tiocmget(struct tty_struct *tty) u8 control; int result; - cp210x_read_u8_reg(port, CP210X_GET_MDMSTS, &control); + result = cp210x_read_u8_reg(port, CP210X_GET_MDMSTS, &control); + if (result) + return result; result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0) |((control & CONTROL_RTS) ? TIOCM_RTS : 0) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index b2d767e743fc..0ff7f38d7800 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -986,7 +986,8 @@ static const struct usb_device_id id_table_combined[] = { /* ekey Devices */ { USB_DEVICE(FTDI_VID, FTDI_EKEY_CONV_USB_PID) }, /* Infineon Devices */ - { USB_DEVICE_INTERFACE_NUMBER(INFINEON_VID, INFINEON_TRIBOARD_PID, 1) }, + { USB_DEVICE_INTERFACE_NUMBER(INFINEON_VID, INFINEON_TRIBOARD_TC1798_PID, 1) }, + { USB_DEVICE_INTERFACE_NUMBER(INFINEON_VID, INFINEON_TRIBOARD_TC2X7_PID, 1) }, /* GE Healthcare devices */ { USB_DEVICE(GE_HEALTHCARE_VID, GE_HEALTHCARE_NEMO_TRACKER_PID) }, /* Active Research (Actisense) devices */ diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index f87a938cf005..21011c0a4c64 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -626,8 +626,9 @@ /* * Infineon Technologies */ -#define INFINEON_VID 0x058b -#define INFINEON_TRIBOARD_PID 0x0028 /* DAS JTAG TriBoard TC1798 V1.0 */ +#define INFINEON_VID 0x058b +#define INFINEON_TRIBOARD_TC1798_PID 0x0028 /* DAS JTAG TriBoard TC1798 V1.0 */ +#define INFINEON_TRIBOARD_TC2X7_PID 0x0043 /* DAS JTAG TriBoard TC2X7 V1.0 */ /* * Acton Research Corp. diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index d213cf44a7e4..4a037b4a79cf 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1078,7 +1078,8 @@ static int usb_serial_probe(struct usb_interface *interface, serial->disconnected = 0; - usb_serial_console_init(serial->port[0]->minor); + if (num_ports > 0) + usb_serial_console_init(serial->port[0]->minor); exit: module_put(type->driver.owner); return 0; diff --git a/drivers/usb/wusbcore/crypto.c b/drivers/usb/wusbcore/crypto.c index 79b2b628066d..79451f7ef1b7 100644 --- a/drivers/usb/wusbcore/crypto.c +++ b/drivers/usb/wusbcore/crypto.c @@ -133,6 +133,13 @@ static void bytewise_xor(void *_bo, const void *_bi1, const void *_bi2, bo[itr] = bi1[itr] ^ bi2[itr]; } +/* Scratch space for MAC calculations. */ +struct wusb_mac_scratch { + struct aes_ccm_b0 b0; + struct aes_ccm_b1 b1; + struct aes_ccm_a ax; +}; + /* * CC-MAC function WUSB1.0[6.5] * @@ -197,16 +204,15 @@ static void bytewise_xor(void *_bo, const void *_bi1, const void *_bi2, * what sg[4] is for. Maybe there is a smarter way to do this. */ static int wusb_ccm_mac(struct crypto_skcipher *tfm_cbc, - struct crypto_cipher *tfm_aes, void *mic, + struct crypto_cipher *tfm_aes, + struct wusb_mac_scratch *scratch, + void *mic, const struct aes_ccm_nonce *n, const struct aes_ccm_label *a, const void *b, size_t blen) { int result = 0; SKCIPHER_REQUEST_ON_STACK(req, tfm_cbc); - struct aes_ccm_b0 b0; - struct aes_ccm_b1 b1; - struct aes_ccm_a ax; struct scatterlist sg[4], sg_dst; void *dst_buf; size_t dst_size; @@ -218,16 +224,17 @@ static int wusb_ccm_mac(struct crypto_skcipher *tfm_cbc, * These checks should be compile time optimized out * ensure @a fills b1's mac_header and following fields */ - WARN_ON(sizeof(*a) != sizeof(b1) - sizeof(b1.la)); - WARN_ON(sizeof(b0) != sizeof(struct aes_ccm_block)); - WARN_ON(sizeof(b1) != sizeof(struct aes_ccm_block)); - WARN_ON(sizeof(ax) != sizeof(struct aes_ccm_block)); + WARN_ON(sizeof(*a) != sizeof(scratch->b1) - sizeof(scratch->b1.la)); + WARN_ON(sizeof(scratch->b0) != sizeof(struct aes_ccm_block)); + WARN_ON(sizeof(scratch->b1) != sizeof(struct aes_ccm_block)); + WARN_ON(sizeof(scratch->ax) != sizeof(struct aes_ccm_block)); result = -ENOMEM; zero_padding = blen % sizeof(struct aes_ccm_block); if (zero_padding) zero_padding = sizeof(struct aes_ccm_block) - zero_padding; - dst_size = blen + sizeof(b0) + sizeof(b1) + zero_padding; + dst_size = blen + sizeof(scratch->b0) + sizeof(scratch->b1) + + zero_padding; dst_buf = kzalloc(dst_size, GFP_KERNEL); if (!dst_buf) goto error_dst_buf; @@ -235,9 +242,9 @@ static int wusb_ccm_mac(struct crypto_skcipher *tfm_cbc, memset(iv, 0, sizeof(iv)); /* Setup B0 */ - b0.flags = 0x59; /* Format B0 */ - b0.ccm_nonce = *n; - b0.lm = cpu_to_be16(0); /* WUSB1.0[6.5] sez l(m) is 0 */ + scratch->b0.flags = 0x59; /* Format B0 */ + scratch->b0.ccm_nonce = *n; + scratch->b0.lm = cpu_to_be16(0); /* WUSB1.0[6.5] sez l(m) is 0 */ /* Setup B1 * @@ -246,12 +253,12 @@ static int wusb_ccm_mac(struct crypto_skcipher *tfm_cbc, * 14'--after clarification, it means to use A's contents * for MAC Header, EO, sec reserved and padding. */ - b1.la = cpu_to_be16(blen + 14); - memcpy(&b1.mac_header, a, sizeof(*a)); + scratch->b1.la = cpu_to_be16(blen + 14); + memcpy(&scratch->b1.mac_header, a, sizeof(*a)); sg_init_table(sg, ARRAY_SIZE(sg)); - sg_set_buf(&sg[0], &b0, sizeof(b0)); - sg_set_buf(&sg[1], &b1, sizeof(b1)); + sg_set_buf(&sg[0], &scratch->b0, sizeof(scratch->b0)); + sg_set_buf(&sg[1], &scratch->b1, sizeof(scratch->b1)); sg_set_buf(&sg[2], b, blen); /* 0 if well behaved :) */ sg_set_buf(&sg[3], bzero, zero_padding); @@ -276,11 +283,12 @@ static int wusb_ccm_mac(struct crypto_skcipher *tfm_cbc, * POS Crypto API: size is assumed to be AES's block size. * Thanks for documenting it -- tip taken from airo.c */ - ax.flags = 0x01; /* as per WUSB 1.0 spec */ - ax.ccm_nonce = *n; - ax.counter = 0; - crypto_cipher_encrypt_one(tfm_aes, (void *)&ax, (void *)&ax); - bytewise_xor(mic, &ax, iv, 8); + scratch->ax.flags = 0x01; /* as per WUSB 1.0 spec */ + scratch->ax.ccm_nonce = *n; + scratch->ax.counter = 0; + crypto_cipher_encrypt_one(tfm_aes, (void *)&scratch->ax, + (void *)&scratch->ax); + bytewise_xor(mic, &scratch->ax, iv, 8); result = 8; error_cbc_crypt: kfree(dst_buf); @@ -303,6 +311,7 @@ ssize_t wusb_prf(void *out, size_t out_size, struct aes_ccm_nonce n = *_n; struct crypto_skcipher *tfm_cbc; struct crypto_cipher *tfm_aes; + struct wusb_mac_scratch *scratch; u64 sfn = 0; __le64 sfn_le; @@ -329,17 +338,25 @@ ssize_t wusb_prf(void *out, size_t out_size, printk(KERN_ERR "E: can't set AES key: %d\n", (int)result); goto error_setkey_aes; } + scratch = kmalloc(sizeof(*scratch), GFP_KERNEL); + if (!scratch) { + result = -ENOMEM; + goto error_alloc_scratch; + } for (bitr = 0; bitr < (len + 63) / 64; bitr++) { sfn_le = cpu_to_le64(sfn++); memcpy(&n.sfn, &sfn_le, sizeof(n.sfn)); /* n.sfn++... */ - result = wusb_ccm_mac(tfm_cbc, tfm_aes, out + bytes, + result = wusb_ccm_mac(tfm_cbc, tfm_aes, scratch, out + bytes, &n, a, b, blen); if (result < 0) goto error_ccm_mac; bytes += result; } result = bytes; + + kfree(scratch); +error_alloc_scratch: error_ccm_mac: error_setkey_aes: crypto_free_cipher(tfm_aes); diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index e12bd3635f83..26e5e8507f03 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -168,7 +168,9 @@ out: #endif /* CONFIG_HIBERNATE_CALLBACKS */ struct shutdown_handler { - const char *command; +#define SHUTDOWN_CMD_SIZE 11 + const char command[SHUTDOWN_CMD_SIZE]; + bool flag; void (*cb)(void); }; @@ -206,22 +208,22 @@ static void do_reboot(void) ctrl_alt_del(); } +static struct shutdown_handler shutdown_handlers[] = { + { "poweroff", true, do_poweroff }, + { "halt", false, do_poweroff }, + { "reboot", true, do_reboot }, +#ifdef CONFIG_HIBERNATE_CALLBACKS + { "suspend", true, do_suspend }, +#endif +}; + static void shutdown_handler(struct xenbus_watch *watch, const char **vec, unsigned int len) { char *str; struct xenbus_transaction xbt; int err; - static struct shutdown_handler handlers[] = { - { "poweroff", do_poweroff }, - { "halt", do_poweroff }, - { "reboot", do_reboot }, -#ifdef CONFIG_HIBERNATE_CALLBACKS - { "suspend", do_suspend }, -#endif - {NULL, NULL}, - }; - static struct shutdown_handler *handler; + int idx; if (shutting_down != SHUTDOWN_INVALID) return; @@ -238,13 +240,13 @@ static void shutdown_handler(struct xenbus_watch *watch, return; } - for (handler = &handlers[0]; handler->command; handler++) { - if (strcmp(str, handler->command) == 0) + for (idx = 0; idx < ARRAY_SIZE(shutdown_handlers); idx++) { + if (strcmp(str, shutdown_handlers[idx].command) == 0) break; } /* Only acknowledge commands which we are prepared to handle. */ - if (handler->cb) + if (idx < ARRAY_SIZE(shutdown_handlers)) xenbus_write(xbt, "control", "shutdown", ""); err = xenbus_transaction_end(xbt, 0); @@ -253,8 +255,8 @@ static void shutdown_handler(struct xenbus_watch *watch, goto again; } - if (handler->cb) { - handler->cb(); + if (idx < ARRAY_SIZE(shutdown_handlers)) { + shutdown_handlers[idx].cb(); } else { pr_info("Ignoring shutdown request: %s\n", str); shutting_down = SHUTDOWN_INVALID; @@ -310,6 +312,9 @@ static struct notifier_block xen_reboot_nb = { static int setup_shutdown_watcher(void) { int err; + int idx; +#define FEATURE_PATH_SIZE (SHUTDOWN_CMD_SIZE + sizeof("feature-")) + char node[FEATURE_PATH_SIZE]; err = register_xenbus_watch(&shutdown_watch); if (err) { @@ -326,6 +331,14 @@ static int setup_shutdown_watcher(void) } #endif + for (idx = 0; idx < ARRAY_SIZE(shutdown_handlers); idx++) { + if (!shutdown_handlers[idx].flag) + continue; + snprintf(node, FEATURE_PATH_SIZE, "feature-%s", + shutdown_handlers[idx].command); + xenbus_printf(XBT_NIL, "control", node, "%u", 1); + } + return 0; } diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c index c1010f018bd8..1e8be12ebb55 100644 --- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -364,7 +364,7 @@ out: static int xenbus_write_watch(unsigned msg_type, struct xenbus_file_priv *u) { - struct watch_adapter *watch, *tmp_watch; + struct watch_adapter *watch; char *path, *token; int err, rc; LIST_HEAD(staging_q); @@ -399,7 +399,7 @@ static int xenbus_write_watch(unsigned msg_type, struct xenbus_file_priv *u) } list_add(&watch->list, &u->watches); } else { - list_for_each_entry_safe(watch, tmp_watch, &u->watches, list) { + list_for_each_entry(watch, &u->watches, list) { if (!strcmp(watch->token, token) && !strcmp(watch->watch.node, path)) { unregister_xenbus_watch(&watch->watch); diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c index 611a23119675..6d40a972ffb2 100644 --- a/drivers/xen/xenbus/xenbus_probe_frontend.c +++ b/drivers/xen/xenbus/xenbus_probe_frontend.c @@ -335,7 +335,9 @@ static int backend_state; static void xenbus_reset_backend_state_changed(struct xenbus_watch *w, const char **v, unsigned int l) { - xenbus_scanf(XBT_NIL, v[XS_WATCH_PATH], "", "%i", &backend_state); + if (xenbus_scanf(XBT_NIL, v[XS_WATCH_PATH], "", "%i", + &backend_state) != 1) + backend_state = XenbusStateUnknown; printk(KERN_DEBUG "XENBUS: backend %s %s\n", v[XS_WATCH_PATH], xenbus_strstate(backend_state)); wake_up(&backend_state_wq); diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 01bc36cec26e..71261b459863 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -5805,6 +5805,64 @@ static int changed_extent(struct send_ctx *sctx, int ret = 0; if (sctx->cur_ino != sctx->cmp_key->objectid) { + + if (result == BTRFS_COMPARE_TREE_CHANGED) { + struct extent_buffer *leaf_l; + struct extent_buffer *leaf_r; + struct btrfs_file_extent_item *ei_l; + struct btrfs_file_extent_item *ei_r; + + leaf_l = sctx->left_path->nodes[0]; + leaf_r = sctx->right_path->nodes[0]; + ei_l = btrfs_item_ptr(leaf_l, + sctx->left_path->slots[0], + struct btrfs_file_extent_item); + ei_r = btrfs_item_ptr(leaf_r, + sctx->right_path->slots[0], + struct btrfs_file_extent_item); + + /* + * We may have found an extent item that has changed + * only its disk_bytenr field and the corresponding + * inode item was not updated. This case happens due to + * very specific timings during relocation when a leaf + * that contains file extent items is COWed while + * relocation is ongoing and its in the stage where it + * updates data pointers. So when this happens we can + * safely ignore it since we know it's the same extent, + * but just at different logical and physical locations + * (when an extent is fully replaced with a new one, we + * know the generation number must have changed too, + * since snapshot creation implies committing the current + * transaction, and the inode item must have been updated + * as well). + * This replacement of the disk_bytenr happens at + * relocation.c:replace_file_extents() through + * relocation.c:btrfs_reloc_cow_block(). + */ + if (btrfs_file_extent_generation(leaf_l, ei_l) == + btrfs_file_extent_generation(leaf_r, ei_r) && + btrfs_file_extent_ram_bytes(leaf_l, ei_l) == + btrfs_file_extent_ram_bytes(leaf_r, ei_r) && + btrfs_file_extent_compression(leaf_l, ei_l) == + btrfs_file_extent_compression(leaf_r, ei_r) && + btrfs_file_extent_encryption(leaf_l, ei_l) == + btrfs_file_extent_encryption(leaf_r, ei_r) && + btrfs_file_extent_other_encoding(leaf_l, ei_l) == + btrfs_file_extent_other_encoding(leaf_r, ei_r) && + btrfs_file_extent_type(leaf_l, ei_l) == + btrfs_file_extent_type(leaf_r, ei_r) && + btrfs_file_extent_disk_bytenr(leaf_l, ei_l) != + btrfs_file_extent_disk_bytenr(leaf_r, ei_r) && + btrfs_file_extent_disk_num_bytes(leaf_l, ei_l) == + btrfs_file_extent_disk_num_bytes(leaf_r, ei_r) && + btrfs_file_extent_offset(leaf_l, ei_l) == + btrfs_file_extent_offset(leaf_r, ei_r) && + btrfs_file_extent_num_bytes(leaf_l, ei_l) == + btrfs_file_extent_num_bytes(leaf_r, ei_r)) + return 0; + } + inconsistent_snapshot_error(sctx, result, "extent"); return -EIO; } diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 528cae123dc9..3d33c4e41e5f 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2713,14 +2713,12 @@ static inline void btrfs_remove_all_log_ctxs(struct btrfs_root *root, int index, int error) { struct btrfs_log_ctx *ctx; + struct btrfs_log_ctx *safe; - if (!error) { - INIT_LIST_HEAD(&root->log_ctxs[index]); - return; - } - - list_for_each_entry(ctx, &root->log_ctxs[index], list) + list_for_each_entry_safe(ctx, safe, &root->log_ctxs[index], list) { + list_del_init(&ctx->list); ctx->log_ret = error; + } INIT_LIST_HEAD(&root->log_ctxs[index]); } @@ -2961,13 +2959,9 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, mutex_unlock(&root->log_mutex); out_wake_log_root: - /* - * We needn't get log_mutex here because we are sure all - * the other tasks are blocked. - */ + mutex_lock(&log_root_tree->log_mutex); btrfs_remove_all_log_ctxs(log_root_tree, index2, ret); - mutex_lock(&log_root_tree->log_mutex); log_root_tree->log_transid_committed++; atomic_set(&log_root_tree->log_commit[index2], 0); mutex_unlock(&log_root_tree->log_mutex); @@ -2978,10 +2972,8 @@ out_wake_log_root: if (waitqueue_active(&log_root_tree->log_commit_wait[index2])) wake_up(&log_root_tree->log_commit_wait[index2]); out: - /* See above. */ - btrfs_remove_all_log_ctxs(root, index1, ret); - mutex_lock(&root->log_mutex); + btrfs_remove_all_log_ctxs(root, index1, ret); root->log_transid_committed++; atomic_set(&root->log_commit[index1], 0); mutex_unlock(&root->log_mutex); diff --git a/fs/exofs/dir.c b/fs/exofs/dir.c index 79101651fe9e..42f9a0a0c4ca 100644 --- a/fs/exofs/dir.c +++ b/fs/exofs/dir.c @@ -137,7 +137,7 @@ Espan: bad_entry: EXOFS_ERR( "ERROR [exofs_check_page]: bad entry in directory(0x%lx): %s - " - "offset=%lu, inode=0x%llu, rec_len=%d, name_len=%d\n", + "offset=%lu, inode=0x%llx, rec_len=%d, name_len=%d\n", dir->i_ino, error, (page->index<inode_no)), rec_len, p->name_len); diff --git a/fs/iomap.c b/fs/iomap.c index 013d1d36fbbf..a8ee8c33ca78 100644 --- a/fs/iomap.c +++ b/fs/iomap.c @@ -433,8 +433,7 @@ iomap_page_mkwrite_actor(struct inode *inode, loff_t pos, loff_t length, struct page *page = data; int ret; - ret = __block_write_begin_int(page, pos & ~PAGE_MASK, length, - NULL, iomap); + ret = __block_write_begin_int(page, pos, length, NULL, iomap); if (ret) return ret; @@ -561,7 +560,7 @@ int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fi, } while (len > 0) { - ret = iomap_apply(inode, start, len, 0, ops, &ctx, + ret = iomap_apply(inode, start, len, IOMAP_REPORT, ops, &ctx, iomap_fiemap_actor); /* inode with no (attribute) mapping will give ENOENT */ if (ret == -ENOENT) diff --git a/fs/orangefs/dcache.c b/fs/orangefs/dcache.c index 1e8fe844e69f..5355efba4bc8 100644 --- a/fs/orangefs/dcache.c +++ b/fs/orangefs/dcache.c @@ -73,7 +73,7 @@ static int orangefs_revalidate_lookup(struct dentry *dentry) } } - dentry->d_time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000; + orangefs_set_timeout(dentry); ret = 1; out_release_op: op_release(new_op); @@ -94,8 +94,9 @@ out_drop: static int orangefs_d_revalidate(struct dentry *dentry, unsigned int flags) { int ret; + unsigned long time = (unsigned long) dentry->d_fsdata; - if (time_before(jiffies, dentry->d_time)) + if (time_before(jiffies, time)) return 1; if (flags & LOOKUP_RCU) diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c index 66ea0cc37b18..02cc6139ec90 100644 --- a/fs/orangefs/file.c +++ b/fs/orangefs/file.c @@ -621,9 +621,9 @@ static int orangefs_file_release(struct inode *inode, struct file *file) * readahead cache (if any); this forces an expensive refresh of * data for the next caller of mmap (or 'get_block' accesses) */ - if (file->f_path.dentry->d_inode && - file->f_path.dentry->d_inode->i_mapping && - mapping_nrpages(&file->f_path.dentry->d_inode->i_data)) { + if (file_inode(file) && + file_inode(file)->i_mapping && + mapping_nrpages(&file_inode(file)->i_data)) { if (orangefs_features & ORANGEFS_FEATURE_READAHEAD) { gossip_debug(GOSSIP_INODE_DEBUG, "calling flush_racache on %pU\n", @@ -632,7 +632,7 @@ static int orangefs_file_release(struct inode *inode, struct file *file) gossip_debug(GOSSIP_INODE_DEBUG, "flush_racache finished\n"); } - truncate_inode_pages(file->f_path.dentry->d_inode->i_mapping, + truncate_inode_pages(file_inode(file)->i_mapping, 0); } return 0; @@ -648,7 +648,7 @@ static int orangefs_fsync(struct file *file, { int ret = -EINVAL; struct orangefs_inode_s *orangefs_inode = - ORANGEFS_I(file->f_path.dentry->d_inode); + ORANGEFS_I(file_inode(file)); struct orangefs_kernel_op_s *new_op = NULL; /* required call */ @@ -661,7 +661,7 @@ static int orangefs_fsync(struct file *file, ret = service_operation(new_op, "orangefs_fsync", - get_interruptible_flag(file->f_path.dentry->d_inode)); + get_interruptible_flag(file_inode(file))); gossip_debug(GOSSIP_FILE_DEBUG, "orangefs_fsync got return value of %d\n", @@ -669,7 +669,7 @@ static int orangefs_fsync(struct file *file, op_release(new_op); - orangefs_flush_inode(file->f_path.dentry->d_inode); + orangefs_flush_inode(file_inode(file)); return ret; } diff --git a/fs/orangefs/namei.c b/fs/orangefs/namei.c index d15d3d2dba62..a290ff6ec756 100644 --- a/fs/orangefs/namei.c +++ b/fs/orangefs/namei.c @@ -72,7 +72,7 @@ static int orangefs_create(struct inode *dir, d_instantiate(dentry, inode); unlock_new_inode(inode); - dentry->d_time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000; + orangefs_set_timeout(dentry); ORANGEFS_I(inode)->getattr_time = jiffies - 1; gossip_debug(GOSSIP_NAME_DEBUG, @@ -183,7 +183,7 @@ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry, goto out; } - dentry->d_time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000; + orangefs_set_timeout(dentry); inode = orangefs_iget(dir->i_sb, &new_op->downcall.resp.lookup.refn); if (IS_ERR(inode)) { @@ -322,7 +322,7 @@ static int orangefs_symlink(struct inode *dir, d_instantiate(dentry, inode); unlock_new_inode(inode); - dentry->d_time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000; + orangefs_set_timeout(dentry); ORANGEFS_I(inode)->getattr_time = jiffies - 1; gossip_debug(GOSSIP_NAME_DEBUG, @@ -386,7 +386,7 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode d_instantiate(dentry, inode); unlock_new_inode(inode); - dentry->d_time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000; + orangefs_set_timeout(dentry); ORANGEFS_I(inode)->getattr_time = jiffies - 1; gossip_debug(GOSSIP_NAME_DEBUG, diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h index 0a82048f3aaf..3bf803d732c5 100644 --- a/fs/orangefs/orangefs-kernel.h +++ b/fs/orangefs/orangefs-kernel.h @@ -580,4 +580,11 @@ static inline void orangefs_i_size_write(struct inode *inode, loff_t i_size) #endif } +static inline void orangefs_set_timeout(struct dentry *dentry) +{ + unsigned long time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000; + + dentry->d_fsdata = (void *) time; +} + #endif /* __ORANGEFSKERNEL_H */ diff --git a/fs/proc/base.c b/fs/proc/base.c index 8e654468ab67..ca651ac00660 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -252,7 +252,7 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf, * Inherently racy -- command line shares address space * with code and data. */ - rv = access_remote_vm(mm, arg_end - 1, &c, 1, FOLL_FORCE); + rv = access_remote_vm(mm, arg_end - 1, &c, 1, 0); if (rv <= 0) goto out_free_page; @@ -270,8 +270,7 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf, int nr_read; _count = min3(count, len, PAGE_SIZE); - nr_read = access_remote_vm(mm, p, page, _count, - FOLL_FORCE); + nr_read = access_remote_vm(mm, p, page, _count, 0); if (nr_read < 0) rv = nr_read; if (nr_read <= 0) @@ -306,8 +305,7 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf, bool final; _count = min3(count, len, PAGE_SIZE); - nr_read = access_remote_vm(mm, p, page, _count, - FOLL_FORCE); + nr_read = access_remote_vm(mm, p, page, _count, 0); if (nr_read < 0) rv = nr_read; if (nr_read <= 0) @@ -356,8 +354,7 @@ skip_argv: bool final; _count = min3(count, len, PAGE_SIZE); - nr_read = access_remote_vm(mm, p, page, _count, - FOLL_FORCE); + nr_read = access_remote_vm(mm, p, page, _count, 0); if (nr_read < 0) rv = nr_read; if (nr_read <= 0) @@ -835,7 +832,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf, unsigned long addr = *ppos; ssize_t copied; char *page; - unsigned int flags = FOLL_FORCE; + unsigned int flags; if (!mm) return 0; @@ -848,6 +845,8 @@ static ssize_t mem_rw(struct file *file, char __user *buf, if (!atomic_inc_not_zero(&mm->mm_users)) goto free; + /* Maybe we should limit FOLL_FORCE to actual ptrace users? */ + flags = FOLL_FORCE; if (write) flags |= FOLL_WRITE; @@ -971,8 +970,7 @@ static ssize_t environ_read(struct file *file, char __user *buf, max_len = min_t(size_t, PAGE_SIZE, count); this_len = min(max_len, this_len); - retval = access_remote_vm(mm, (env_start + src), - page, this_len, FOLL_FORCE); + retval = access_remote_vm(mm, (env_start + src), page, this_len, 0); if (retval <= 0) { ret = retval; @@ -1014,6 +1012,9 @@ static ssize_t auxv_read(struct file *file, char __user *buf, { struct mm_struct *mm = file->private_data; unsigned int nwords = 0; + + if (!mm) + return 0; do { nwords += 2; } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */ diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index c27344cf38e1..c6eb21940783 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -3974,9 +3974,6 @@ xfs_bmap_remap_alloc( * allocating, so skip that check by pretending to be freeing. */ error = xfs_alloc_fix_freelist(&args, XFS_ALLOC_FLAG_FREEING); - if (error) - goto error0; -error0: xfs_perag_put(args.pag); if (error) trace_xfs_bmap_remap_alloc_error(ap->ip, error, _RET_IP_); @@ -3999,6 +3996,39 @@ xfs_bmap_alloc( return xfs_bmap_btalloc(ap); } +/* Trim extent to fit a logical block range. */ +void +xfs_trim_extent( + struct xfs_bmbt_irec *irec, + xfs_fileoff_t bno, + xfs_filblks_t len) +{ + xfs_fileoff_t distance; + xfs_fileoff_t end = bno + len; + + if (irec->br_startoff + irec->br_blockcount <= bno || + irec->br_startoff >= end) { + irec->br_blockcount = 0; + return; + } + + if (irec->br_startoff < bno) { + distance = bno - irec->br_startoff; + if (isnullstartblock(irec->br_startblock)) + irec->br_startblock = DELAYSTARTBLOCK; + if (irec->br_startblock != DELAYSTARTBLOCK && + irec->br_startblock != HOLESTARTBLOCK) + irec->br_startblock += distance; + irec->br_startoff += distance; + irec->br_blockcount -= distance; + } + + if (end < irec->br_startoff + irec->br_blockcount) { + distance = irec->br_startoff + irec->br_blockcount - end; + irec->br_blockcount -= distance; + } +} + /* * Trim the returned map to the required bounds */ @@ -4829,6 +4859,219 @@ xfs_bmap_split_indlen( return stolen; } +int +xfs_bmap_del_extent_delay( + struct xfs_inode *ip, + int whichfork, + xfs_extnum_t *idx, + struct xfs_bmbt_irec *got, + struct xfs_bmbt_irec *del) +{ + struct xfs_mount *mp = ip->i_mount; + struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork); + struct xfs_bmbt_irec new; + int64_t da_old, da_new, da_diff = 0; + xfs_fileoff_t del_endoff, got_endoff; + xfs_filblks_t got_indlen, new_indlen, stolen; + int error = 0, state = 0; + bool isrt; + + XFS_STATS_INC(mp, xs_del_exlist); + + isrt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(ip); + del_endoff = del->br_startoff + del->br_blockcount; + got_endoff = got->br_startoff + got->br_blockcount; + da_old = startblockval(got->br_startblock); + da_new = 0; + + ASSERT(*idx >= 0); + ASSERT(*idx < ifp->if_bytes / sizeof(struct xfs_bmbt_rec)); + ASSERT(del->br_blockcount > 0); + ASSERT(got->br_startoff <= del->br_startoff); + ASSERT(got_endoff >= del_endoff); + + if (isrt) { + int64_t rtexts = XFS_FSB_TO_B(mp, del->br_blockcount); + + do_div(rtexts, mp->m_sb.sb_rextsize); + xfs_mod_frextents(mp, rtexts); + } + + /* + * Update the inode delalloc counter now and wait to update the + * sb counters as we might have to borrow some blocks for the + * indirect block accounting. + */ + xfs_trans_reserve_quota_nblks(NULL, ip, -((long)del->br_blockcount), 0, + isrt ? XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS); + ip->i_delayed_blks -= del->br_blockcount; + + if (whichfork == XFS_COW_FORK) + state |= BMAP_COWFORK; + + if (got->br_startoff == del->br_startoff) + state |= BMAP_LEFT_CONTIG; + if (got_endoff == del_endoff) + state |= BMAP_RIGHT_CONTIG; + + switch (state & (BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG)) { + case BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG: + /* + * Matches the whole extent. Delete the entry. + */ + xfs_iext_remove(ip, *idx, 1, state); + --*idx; + break; + case BMAP_LEFT_CONTIG: + /* + * Deleting the first part of the extent. + */ + trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_); + got->br_startoff = del_endoff; + got->br_blockcount -= del->br_blockcount; + da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, + got->br_blockcount), da_old); + got->br_startblock = nullstartblock((int)da_new); + xfs_bmbt_set_all(xfs_iext_get_ext(ifp, *idx), got); + trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_); + break; + case BMAP_RIGHT_CONTIG: + /* + * Deleting the last part of the extent. + */ + trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_); + got->br_blockcount = got->br_blockcount - del->br_blockcount; + da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, + got->br_blockcount), da_old); + got->br_startblock = nullstartblock((int)da_new); + xfs_bmbt_set_all(xfs_iext_get_ext(ifp, *idx), got); + trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_); + break; + case 0: + /* + * Deleting the middle of the extent. + * + * Distribute the original indlen reservation across the two new + * extents. Steal blocks from the deleted extent if necessary. + * Stealing blocks simply fudges the fdblocks accounting below. + * Warn if either of the new indlen reservations is zero as this + * can lead to delalloc problems. + */ + trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_); + + got->br_blockcount = del->br_startoff - got->br_startoff; + got_indlen = xfs_bmap_worst_indlen(ip, got->br_blockcount); + + new.br_blockcount = got_endoff - del_endoff; + new_indlen = xfs_bmap_worst_indlen(ip, new.br_blockcount); + + WARN_ON_ONCE(!got_indlen || !new_indlen); + stolen = xfs_bmap_split_indlen(da_old, &got_indlen, &new_indlen, + del->br_blockcount); + + got->br_startblock = nullstartblock((int)got_indlen); + xfs_bmbt_set_all(xfs_iext_get_ext(ifp, *idx), got); + trace_xfs_bmap_post_update(ip, *idx, 0, _THIS_IP_); + + new.br_startoff = del_endoff; + new.br_state = got->br_state; + new.br_startblock = nullstartblock((int)new_indlen); + + ++*idx; + xfs_iext_insert(ip, *idx, 1, &new, state); + + da_new = got_indlen + new_indlen - stolen; + del->br_blockcount -= stolen; + break; + } + + ASSERT(da_old >= da_new); + da_diff = da_old - da_new; + if (!isrt) + da_diff += del->br_blockcount; + if (da_diff) + xfs_mod_fdblocks(mp, da_diff, false); + return error; +} + +void +xfs_bmap_del_extent_cow( + struct xfs_inode *ip, + xfs_extnum_t *idx, + struct xfs_bmbt_irec *got, + struct xfs_bmbt_irec *del) +{ + struct xfs_mount *mp = ip->i_mount; + struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK); + struct xfs_bmbt_irec new; + xfs_fileoff_t del_endoff, got_endoff; + int state = BMAP_COWFORK; + + XFS_STATS_INC(mp, xs_del_exlist); + + del_endoff = del->br_startoff + del->br_blockcount; + got_endoff = got->br_startoff + got->br_blockcount; + + ASSERT(*idx >= 0); + ASSERT(*idx < ifp->if_bytes / sizeof(struct xfs_bmbt_rec)); + ASSERT(del->br_blockcount > 0); + ASSERT(got->br_startoff <= del->br_startoff); + ASSERT(got_endoff >= del_endoff); + ASSERT(!isnullstartblock(got->br_startblock)); + + if (got->br_startoff == del->br_startoff) + state |= BMAP_LEFT_CONTIG; + if (got_endoff == del_endoff) + state |= BMAP_RIGHT_CONTIG; + + switch (state & (BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG)) { + case BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG: + /* + * Matches the whole extent. Delete the entry. + */ + xfs_iext_remove(ip, *idx, 1, state); + --*idx; + break; + case BMAP_LEFT_CONTIG: + /* + * Deleting the first part of the extent. + */ + trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_); + got->br_startoff = del_endoff; + got->br_blockcount -= del->br_blockcount; + got->br_startblock = del->br_startblock + del->br_blockcount; + xfs_bmbt_set_all(xfs_iext_get_ext(ifp, *idx), got); + trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_); + break; + case BMAP_RIGHT_CONTIG: + /* + * Deleting the last part of the extent. + */ + trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_); + got->br_blockcount -= del->br_blockcount; + xfs_bmbt_set_all(xfs_iext_get_ext(ifp, *idx), got); + trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_); + break; + case 0: + /* + * Deleting the middle of the extent. + */ + trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_); + got->br_blockcount = del->br_startoff - got->br_startoff; + xfs_bmbt_set_all(xfs_iext_get_ext(ifp, *idx), got); + trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_); + + new.br_startoff = del_endoff; + new.br_blockcount = got_endoff - del_endoff; + new.br_state = got->br_state; + new.br_startblock = del->br_startblock + del->br_blockcount; + + ++*idx; + xfs_iext_insert(ip, *idx, 1, &new, state); + break; + } +} + /* * Called by xfs_bmapi to update file extent records and the btree * after removing space (or undoing a delayed allocation). @@ -5171,175 +5414,6 @@ done: return error; } -/* Remove an extent from the CoW fork. Similar to xfs_bmap_del_extent. */ -int -xfs_bunmapi_cow( - struct xfs_inode *ip, - struct xfs_bmbt_irec *del) -{ - xfs_filblks_t da_new; - xfs_filblks_t da_old; - xfs_fsblock_t del_endblock = 0; - xfs_fileoff_t del_endoff; - int delay; - struct xfs_bmbt_rec_host *ep; - int error; - struct xfs_bmbt_irec got; - xfs_fileoff_t got_endoff; - struct xfs_ifork *ifp; - struct xfs_mount *mp; - xfs_filblks_t nblks; - struct xfs_bmbt_irec new; - /* REFERENCED */ - uint qfield; - xfs_filblks_t temp; - xfs_filblks_t temp2; - int state = BMAP_COWFORK; - int eof; - xfs_extnum_t eidx; - - mp = ip->i_mount; - XFS_STATS_INC(mp, xs_del_exlist); - - ep = xfs_bmap_search_extents(ip, del->br_startoff, XFS_COW_FORK, &eof, - &eidx, &got, &new); - - ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK); ifp = ifp; - ASSERT((eidx >= 0) && (eidx < ifp->if_bytes / - (uint)sizeof(xfs_bmbt_rec_t))); - ASSERT(del->br_blockcount > 0); - ASSERT(got.br_startoff <= del->br_startoff); - del_endoff = del->br_startoff + del->br_blockcount; - got_endoff = got.br_startoff + got.br_blockcount; - ASSERT(got_endoff >= del_endoff); - delay = isnullstartblock(got.br_startblock); - ASSERT(isnullstartblock(del->br_startblock) == delay); - qfield = 0; - error = 0; - /* - * If deleting a real allocation, must free up the disk space. - */ - if (!delay) { - nblks = del->br_blockcount; - qfield = XFS_TRANS_DQ_BCOUNT; - /* - * Set up del_endblock and cur for later. - */ - del_endblock = del->br_startblock + del->br_blockcount; - da_old = da_new = 0; - } else { - da_old = startblockval(got.br_startblock); - da_new = 0; - nblks = 0; - } - qfield = qfield; - nblks = nblks; - - /* - * Set flag value to use in switch statement. - * Left-contig is 2, right-contig is 1. - */ - switch (((got.br_startoff == del->br_startoff) << 1) | - (got_endoff == del_endoff)) { - case 3: - /* - * Matches the whole extent. Delete the entry. - */ - xfs_iext_remove(ip, eidx, 1, BMAP_COWFORK); - --eidx; - break; - - case 2: - /* - * Deleting the first part of the extent. - */ - trace_xfs_bmap_pre_update(ip, eidx, state, _THIS_IP_); - xfs_bmbt_set_startoff(ep, del_endoff); - temp = got.br_blockcount - del->br_blockcount; - xfs_bmbt_set_blockcount(ep, temp); - if (delay) { - temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp), - da_old); - xfs_bmbt_set_startblock(ep, nullstartblock((int)temp)); - trace_xfs_bmap_post_update(ip, eidx, state, _THIS_IP_); - da_new = temp; - break; - } - xfs_bmbt_set_startblock(ep, del_endblock); - trace_xfs_bmap_post_update(ip, eidx, state, _THIS_IP_); - break; - - case 1: - /* - * Deleting the last part of the extent. - */ - temp = got.br_blockcount - del->br_blockcount; - trace_xfs_bmap_pre_update(ip, eidx, state, _THIS_IP_); - xfs_bmbt_set_blockcount(ep, temp); - if (delay) { - temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp), - da_old); - xfs_bmbt_set_startblock(ep, nullstartblock((int)temp)); - trace_xfs_bmap_post_update(ip, eidx, state, _THIS_IP_); - da_new = temp; - break; - } - trace_xfs_bmap_post_update(ip, eidx, state, _THIS_IP_); - break; - - case 0: - /* - * Deleting the middle of the extent. - */ - temp = del->br_startoff - got.br_startoff; - trace_xfs_bmap_pre_update(ip, eidx, state, _THIS_IP_); - xfs_bmbt_set_blockcount(ep, temp); - new.br_startoff = del_endoff; - temp2 = got_endoff - del_endoff; - new.br_blockcount = temp2; - new.br_state = got.br_state; - if (!delay) { - new.br_startblock = del_endblock; - } else { - temp = xfs_bmap_worst_indlen(ip, temp); - xfs_bmbt_set_startblock(ep, nullstartblock((int)temp)); - temp2 = xfs_bmap_worst_indlen(ip, temp2); - new.br_startblock = nullstartblock((int)temp2); - da_new = temp + temp2; - while (da_new > da_old) { - if (temp) { - temp--; - da_new--; - xfs_bmbt_set_startblock(ep, - nullstartblock((int)temp)); - } - if (da_new == da_old) - break; - if (temp2) { - temp2--; - da_new--; - new.br_startblock = - nullstartblock((int)temp2); - } - } - } - trace_xfs_bmap_post_update(ip, eidx, state, _THIS_IP_); - xfs_iext_insert(ip, eidx + 1, 1, &new, state); - ++eidx; - break; - } - - /* - * Account for change in delayed indirect blocks. - * Nothing to do for disk quota accounting here. - */ - ASSERT(da_old >= da_new); - if (da_old > da_new) - xfs_mod_fdblocks(mp, (int64_t)(da_old - da_new), false); - - return error; -} - /* * Unmap (remove) blocks from a file. * If nexts is nonzero then the number of extents to remove is limited to diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h index f97db7132564..7cae6ec27fa6 100644 --- a/fs/xfs/libxfs/xfs_bmap.h +++ b/fs/xfs/libxfs/xfs_bmap.h @@ -190,6 +190,8 @@ void xfs_bmap_trace_exlist(struct xfs_inode *ip, xfs_extnum_t cnt, #define XFS_BMAP_TRACE_EXLIST(ip,c,w) #endif +void xfs_trim_extent(struct xfs_bmbt_irec *irec, xfs_fileoff_t bno, + xfs_filblks_t len); int xfs_bmap_add_attrfork(struct xfs_inode *ip, int size, int rsvd); void xfs_bmap_local_to_extents_empty(struct xfs_inode *ip, int whichfork); void xfs_bmap_add_free(struct xfs_mount *mp, struct xfs_defer_ops *dfops, @@ -221,7 +223,11 @@ int xfs_bunmapi(struct xfs_trans *tp, struct xfs_inode *ip, xfs_fileoff_t bno, xfs_filblks_t len, int flags, xfs_extnum_t nexts, xfs_fsblock_t *firstblock, struct xfs_defer_ops *dfops, int *done); -int xfs_bunmapi_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *del); +int xfs_bmap_del_extent_delay(struct xfs_inode *ip, int whichfork, + xfs_extnum_t *idx, struct xfs_bmbt_irec *got, + struct xfs_bmbt_irec *del); +void xfs_bmap_del_extent_cow(struct xfs_inode *ip, xfs_extnum_t *idx, + struct xfs_bmbt_irec *got, struct xfs_bmbt_irec *del); int xfs_check_nostate_extents(struct xfs_ifork *ifp, xfs_extnum_t idx, xfs_extnum_t num); uint xfs_default_attroffset(struct xfs_inode *ip); diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 5c8e6f2ce44f..0e80993c8a59 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -4826,7 +4826,7 @@ xfs_btree_calc_size( return rval; } -int +static int xfs_btree_count_blocks_helper( struct xfs_btree_cur *cur, int level, diff --git a/fs/xfs/libxfs/xfs_dquot_buf.c b/fs/xfs/libxfs/xfs_dquot_buf.c index 3cc3cf767474..ac9a003dd29a 100644 --- a/fs/xfs/libxfs/xfs_dquot_buf.c +++ b/fs/xfs/libxfs/xfs_dquot_buf.c @@ -191,8 +191,7 @@ xfs_dquot_buf_verify_crc( if (mp->m_quotainfo) ndquots = mp->m_quotainfo->qi_dqperchunk; else - ndquots = xfs_calc_dquots_per_chunk( - XFS_BB_TO_FSB(mp, bp->b_length)); + ndquots = xfs_calc_dquots_per_chunk(bp->b_length); for (i = 0; i < ndquots; i++, d++) { if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk), diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index f6547fc5e016..6b7579e7b60a 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -865,7 +865,6 @@ typedef struct xfs_timestamp { * padding field for v3 inodes. */ #define XFS_DINODE_MAGIC 0x494e /* 'IN' */ -#define XFS_DINODE_GOOD_VERSION(v) ((v) >= 1 && (v) <= 3) typedef struct xfs_dinode { __be16 di_magic; /* inode magic # = XFS_DINODE_MAGIC */ __be16 di_mode; /* mode and type of file */ diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index 8de9a3a29589..134424fac434 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -57,6 +57,17 @@ xfs_inobp_check( } #endif +bool +xfs_dinode_good_version( + struct xfs_mount *mp, + __u8 version) +{ + if (xfs_sb_version_hascrc(&mp->m_sb)) + return version == 3; + + return version == 1 || version == 2; +} + /* * If we are doing readahead on an inode buffer, we might be in log recovery * reading an inode allocation buffer that hasn't yet been replayed, and hence @@ -91,7 +102,7 @@ xfs_inode_buf_verify( dip = xfs_buf_offset(bp, (i << mp->m_sb.sb_inodelog)); di_ok = dip->di_magic == cpu_to_be16(XFS_DINODE_MAGIC) && - XFS_DINODE_GOOD_VERSION(dip->di_version); + xfs_dinode_good_version(mp, dip->di_version); if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP, XFS_RANDOM_ITOBP_INOTOBP))) { diff --git a/fs/xfs/libxfs/xfs_inode_buf.h b/fs/xfs/libxfs/xfs_inode_buf.h index 62d9d4681c8c..3cfe12a4f58a 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.h +++ b/fs/xfs/libxfs/xfs_inode_buf.h @@ -74,6 +74,8 @@ void xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from); void xfs_log_dinode_to_disk(struct xfs_log_dinode *from, struct xfs_dinode *to); +bool xfs_dinode_good_version(struct xfs_mount *mp, __u8 version); + #if defined(DEBUG) void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *); #else diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index a314fc7b56fa..6e4f7f900fea 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -249,6 +249,7 @@ xfs_file_dio_aio_read( struct xfs_inode *ip = XFS_I(inode); loff_t isize = i_size_read(inode); size_t count = iov_iter_count(to); + loff_t end = iocb->ki_pos + count - 1; struct iov_iter data; struct xfs_buftarg *target; ssize_t ret = 0; @@ -272,49 +273,21 @@ xfs_file_dio_aio_read( file_accessed(iocb->ki_filp); - /* - * Locking is a bit tricky here. If we take an exclusive lock for direct - * IO, we effectively serialise all new concurrent read IO to this file - * and block it behind IO that is currently in progress because IO in - * progress holds the IO lock shared. We only need to hold the lock - * exclusive to blow away the page cache, so only take lock exclusively - * if the page cache needs invalidation. This allows the normal direct - * IO case of no page cache pages to proceeed concurrently without - * serialisation. - */ xfs_rw_ilock(ip, XFS_IOLOCK_SHARED); if (mapping->nrpages) { - xfs_rw_iunlock(ip, XFS_IOLOCK_SHARED); - xfs_rw_ilock(ip, XFS_IOLOCK_EXCL); + ret = filemap_write_and_wait_range(mapping, iocb->ki_pos, end); + if (ret) + goto out_unlock; /* - * The generic dio code only flushes the range of the particular - * I/O. Because we take an exclusive lock here, this whole - * sequence is considerably more expensive for us. This has a - * noticeable performance impact for any file with cached pages, - * even when outside of the range of the particular I/O. - * - * Hence, amortize the cost of the lock against a full file - * flush and reduce the chances of repeated iolock cycles going - * forward. + * Invalidate whole pages. This can return an error if we fail + * to invalidate a page, but this should never happen on XFS. + * Warn if it does fail. */ - if (mapping->nrpages) { - ret = filemap_write_and_wait(mapping); - if (ret) { - xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); - return ret; - } - - /* - * Invalidate whole pages. This can return an error if - * we fail to invalidate a page, but this should never - * happen on XFS. Warn if it does fail. - */ - ret = invalidate_inode_pages2(mapping); - WARN_ON_ONCE(ret); - ret = 0; - } - xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); + ret = invalidate_inode_pages2_range(mapping, + iocb->ki_pos >> PAGE_SHIFT, end >> PAGE_SHIFT); + WARN_ON_ONCE(ret); + ret = 0; } data = *to; @@ -324,8 +297,9 @@ xfs_file_dio_aio_read( iocb->ki_pos += ret; iov_iter_advance(to, ret); } - xfs_rw_iunlock(ip, XFS_IOLOCK_SHARED); +out_unlock: + xfs_rw_iunlock(ip, XFS_IOLOCK_SHARED); return ret; } @@ -570,61 +544,49 @@ xfs_file_dio_aio_write( if ((iocb->ki_pos | count) & target->bt_logical_sectormask) return -EINVAL; - /* "unaligned" here means not aligned to a filesystem block */ - if ((iocb->ki_pos & mp->m_blockmask) || - ((iocb->ki_pos + count) & mp->m_blockmask)) - unaligned_io = 1; - /* - * We don't need to take an exclusive lock unless there page cache needs - * to be invalidated or unaligned IO is being executed. We don't need to - * consider the EOF extension case here because - * xfs_file_aio_write_checks() will relock the inode as necessary for - * EOF zeroing cases and fill out the new inode size as appropriate. + * Don't take the exclusive iolock here unless the I/O is unaligned to + * the file system block size. We don't need to consider the EOF + * extension case here because xfs_file_aio_write_checks() will relock + * the inode as necessary for EOF zeroing cases and fill out the new + * inode size as appropriate. */ - if (unaligned_io || mapping->nrpages) + if ((iocb->ki_pos & mp->m_blockmask) || + ((iocb->ki_pos + count) & mp->m_blockmask)) { + unaligned_io = 1; iolock = XFS_IOLOCK_EXCL; - else + } else { iolock = XFS_IOLOCK_SHARED; - xfs_rw_ilock(ip, iolock); - - /* - * Recheck if there are cached pages that need invalidate after we got - * the iolock to protect against other threads adding new pages while - * we were waiting for the iolock. - */ - if (mapping->nrpages && iolock == XFS_IOLOCK_SHARED) { - xfs_rw_iunlock(ip, iolock); - iolock = XFS_IOLOCK_EXCL; - xfs_rw_ilock(ip, iolock); } + xfs_rw_ilock(ip, iolock); + ret = xfs_file_aio_write_checks(iocb, from, &iolock); if (ret) goto out; count = iov_iter_count(from); end = iocb->ki_pos + count - 1; - /* - * See xfs_file_dio_aio_read() for why we do a full-file flush here. - */ if (mapping->nrpages) { - ret = filemap_write_and_wait(VFS_I(ip)->i_mapping); + ret = filemap_write_and_wait_range(mapping, iocb->ki_pos, end); if (ret) goto out; + /* * Invalidate whole pages. This can return an error if we fail * to invalidate a page, but this should never happen on XFS. * Warn if it does fail. */ - ret = invalidate_inode_pages2(VFS_I(ip)->i_mapping); + ret = invalidate_inode_pages2_range(mapping, + iocb->ki_pos >> PAGE_SHIFT, end >> PAGE_SHIFT); WARN_ON_ONCE(ret); ret = 0; } /* * If we are doing unaligned IO, wait for all other IO to drain, - * otherwise demote the lock if we had to flush cached pages + * otherwise demote the lock if we had to take the exclusive lock + * for other reasons in xfs_file_aio_write_checks. */ if (unaligned_io) inode_dio_wait(inode); @@ -947,134 +909,6 @@ out_unlock: return error; } -/* - * Flush all file writes out to disk. - */ -static int -xfs_file_wait_for_io( - struct inode *inode, - loff_t offset, - size_t len) -{ - loff_t rounding; - loff_t ioffset; - loff_t iendoffset; - loff_t bs; - int ret; - - bs = inode->i_sb->s_blocksize; - inode_dio_wait(inode); - - rounding = max_t(xfs_off_t, bs, PAGE_SIZE); - ioffset = round_down(offset, rounding); - iendoffset = round_up(offset + len, rounding) - 1; - ret = filemap_write_and_wait_range(inode->i_mapping, ioffset, - iendoffset); - return ret; -} - -/* Hook up to the VFS reflink function */ -STATIC int -xfs_file_share_range( - struct file *file_in, - loff_t pos_in, - struct file *file_out, - loff_t pos_out, - u64 len, - bool is_dedupe) -{ - struct inode *inode_in; - struct inode *inode_out; - ssize_t ret; - loff_t bs; - loff_t isize; - int same_inode; - loff_t blen; - unsigned int flags = 0; - - inode_in = file_inode(file_in); - inode_out = file_inode(file_out); - bs = inode_out->i_sb->s_blocksize; - - /* Don't touch certain kinds of inodes */ - if (IS_IMMUTABLE(inode_out)) - return -EPERM; - if (IS_SWAPFILE(inode_in) || - IS_SWAPFILE(inode_out)) - return -ETXTBSY; - - /* Reflink only works within this filesystem. */ - if (inode_in->i_sb != inode_out->i_sb) - return -EXDEV; - same_inode = (inode_in->i_ino == inode_out->i_ino); - - /* Don't reflink dirs, pipes, sockets... */ - if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode)) - return -EISDIR; - if (S_ISFIFO(inode_in->i_mode) || S_ISFIFO(inode_out->i_mode)) - return -EINVAL; - if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode)) - return -EINVAL; - - /* Don't share DAX file data for now. */ - if (IS_DAX(inode_in) || IS_DAX(inode_out)) - return -EINVAL; - - /* Are we going all the way to the end? */ - isize = i_size_read(inode_in); - if (isize == 0) - return 0; - if (len == 0) - len = isize - pos_in; - - /* Ensure offsets don't wrap and the input is inside i_size */ - if (pos_in + len < pos_in || pos_out + len < pos_out || - pos_in + len > isize) - return -EINVAL; - - /* Don't allow dedupe past EOF in the dest file */ - if (is_dedupe) { - loff_t disize; - - disize = i_size_read(inode_out); - if (pos_out >= disize || pos_out + len > disize) - return -EINVAL; - } - - /* If we're linking to EOF, continue to the block boundary. */ - if (pos_in + len == isize) - blen = ALIGN(isize, bs) - pos_in; - else - blen = len; - - /* Only reflink if we're aligned to block boundaries */ - if (!IS_ALIGNED(pos_in, bs) || !IS_ALIGNED(pos_in + blen, bs) || - !IS_ALIGNED(pos_out, bs) || !IS_ALIGNED(pos_out + blen, bs)) - return -EINVAL; - - /* Don't allow overlapped reflink within the same file */ - if (same_inode && pos_out + blen > pos_in && pos_out < pos_in + blen) - return -EINVAL; - - /* Wait for the completion of any pending IOs on srcfile */ - ret = xfs_file_wait_for_io(inode_in, pos_in, len); - if (ret) - goto out; - ret = xfs_file_wait_for_io(inode_out, pos_out, len); - if (ret) - goto out; - - if (is_dedupe) - flags |= XFS_REFLINK_DEDUPE; - ret = xfs_reflink_remap_range(XFS_I(inode_in), pos_in, XFS_I(inode_out), - pos_out, len, flags); - if (ret < 0) - goto out; - -out: - return ret; -} - STATIC ssize_t xfs_file_copy_range( struct file *file_in, @@ -1086,7 +920,7 @@ xfs_file_copy_range( { int error; - error = xfs_file_share_range(file_in, pos_in, file_out, pos_out, + error = xfs_reflink_remap_range(file_in, pos_in, file_out, pos_out, len, false); if (error) return error; @@ -1101,7 +935,7 @@ xfs_file_clone_range( loff_t pos_out, u64 len) { - return xfs_file_share_range(file_in, pos_in, file_out, pos_out, + return xfs_reflink_remap_range(file_in, pos_in, file_out, pos_out, len, false); } @@ -1124,7 +958,7 @@ xfs_file_dedupe_range( if (len > XFS_MAX_DEDUPE_LEN) len = XFS_MAX_DEDUPE_LEN; - error = xfs_file_share_range(src_file, loff, dst_file, dst_loff, + error = xfs_reflink_remap_range(src_file, loff, dst_file, dst_loff, len, true); if (error) return error; diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index 14796b744e0a..f295049db681 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -1656,9 +1656,9 @@ void xfs_inode_set_cowblocks_tag( xfs_inode_t *ip) { - trace_xfs_inode_set_eofblocks_tag(ip); + trace_xfs_inode_set_cowblocks_tag(ip); return __xfs_inode_set_eofblocks_tag(ip, xfs_queue_cowblocks, - trace_xfs_perag_set_eofblocks, + trace_xfs_perag_set_cowblocks, XFS_ICI_COWBLOCKS_TAG); } @@ -1666,7 +1666,7 @@ void xfs_inode_clear_cowblocks_tag( xfs_inode_t *ip) { - trace_xfs_inode_clear_eofblocks_tag(ip); + trace_xfs_inode_clear_cowblocks_tag(ip); return __xfs_inode_clear_eofblocks_tag(ip, - trace_xfs_perag_clear_eofblocks, XFS_ICI_COWBLOCKS_TAG); + trace_xfs_perag_clear_cowblocks, XFS_ICI_COWBLOCKS_TAG); } diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index d907eb9f8ef3..436e109bb01e 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -566,6 +566,17 @@ xfs_file_iomap_begin_delay( xfs_bmap_search_extents(ip, offset_fsb, XFS_DATA_FORK, &eof, &idx, &got, &prev); if (!eof && got.br_startoff <= offset_fsb) { + if (xfs_is_reflink_inode(ip)) { + bool shared; + + end_fsb = min(XFS_B_TO_FSB(mp, offset + count), + maxbytes_fsb); + xfs_trim_extent(&got, offset_fsb, end_fsb - offset_fsb); + error = xfs_reflink_reserve_cow(ip, &got, &shared); + if (error) + goto out_unlock; + } + trace_xfs_iomap_found(ip, offset, count, 0, &got); goto done; } @@ -961,19 +972,13 @@ xfs_file_iomap_begin( struct xfs_mount *mp = ip->i_mount; struct xfs_bmbt_irec imap; xfs_fileoff_t offset_fsb, end_fsb; - bool shared, trimmed; int nimaps = 1, error = 0; + bool shared = false, trimmed = false; unsigned lockmode; if (XFS_FORCED_SHUTDOWN(mp)) return -EIO; - if ((flags & (IOMAP_WRITE | IOMAP_ZERO)) && xfs_is_reflink_inode(ip)) { - error = xfs_reflink_reserve_cow_range(ip, offset, length); - if (error < 0) - return error; - } - if ((flags & IOMAP_WRITE) && !IS_DAX(inode) && !xfs_get_extsz_hint(ip)) { /* Reserve delalloc blocks for regular writeback. */ @@ -981,7 +986,16 @@ xfs_file_iomap_begin( iomap); } - lockmode = xfs_ilock_data_map_shared(ip); + /* + * COW writes will allocate delalloc space, so we need to make sure + * to take the lock exclusively here. + */ + if ((flags & (IOMAP_WRITE | IOMAP_ZERO)) && xfs_is_reflink_inode(ip)) { + lockmode = XFS_ILOCK_EXCL; + xfs_ilock(ip, XFS_ILOCK_EXCL); + } else { + lockmode = xfs_ilock_data_map_shared(ip); + } ASSERT(offset <= mp->m_super->s_maxbytes); if ((xfs_fsize_t)offset + length > mp->m_super->s_maxbytes) @@ -991,16 +1005,24 @@ xfs_file_iomap_begin( error = xfs_bmapi_read(ip, offset_fsb, end_fsb - offset_fsb, &imap, &nimaps, 0); - if (error) { - xfs_iunlock(ip, lockmode); - return error; + if (error) + goto out_unlock; + + if (flags & IOMAP_REPORT) { + /* Trim the mapping to the nearest shared extent boundary. */ + error = xfs_reflink_trim_around_shared(ip, &imap, &shared, + &trimmed); + if (error) + goto out_unlock; } - /* Trim the mapping to the nearest shared extent boundary. */ - error = xfs_reflink_trim_around_shared(ip, &imap, &shared, &trimmed); - if (error) { - xfs_iunlock(ip, lockmode); - return error; + if ((flags & (IOMAP_WRITE | IOMAP_ZERO)) && xfs_is_reflink_inode(ip)) { + error = xfs_reflink_reserve_cow(ip, &imap, &shared); + if (error) + goto out_unlock; + + end_fsb = imap.br_startoff + imap.br_blockcount; + length = XFS_FSB_TO_B(mp, end_fsb) - offset; } if ((flags & IOMAP_WRITE) && imap_needs_alloc(inode, &imap, nimaps)) { @@ -1039,6 +1061,9 @@ xfs_file_iomap_begin( if (shared) iomap->flags |= IOMAP_F_SHARED; return 0; +out_unlock: + xfs_iunlock(ip, lockmode); + return error; } static int diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index fc7873942bea..b341f10cf481 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1009,6 +1009,7 @@ xfs_mountfs( out_quota: xfs_qm_unmount_quotas(mp); out_rtunmount: + mp->m_super->s_flags &= ~MS_ACTIVE; xfs_rtunmount_inodes(mp); out_rele_rip: IRELE(rip); diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index 5965e9455d91..a279b4e7f5fe 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -182,7 +182,8 @@ xfs_reflink_trim_around_shared( if (!xfs_is_reflink_inode(ip) || ISUNWRITTEN(irec) || irec->br_startblock == HOLESTARTBLOCK || - irec->br_startblock == DELAYSTARTBLOCK) { + irec->br_startblock == DELAYSTARTBLOCK || + isnullstartblock(irec->br_startblock)) { *shared = false; return 0; } @@ -227,50 +228,54 @@ xfs_reflink_trim_around_shared( } } -/* Create a CoW reservation for a range of blocks within a file. */ -static int -__xfs_reflink_reserve_cow( +/* + * Trim the passed in imap to the next shared/unshared extent boundary, and + * if imap->br_startoff points to a shared extent reserve space for it in the + * COW fork. In this case *shared is set to true, else to false. + * + * Note that imap will always contain the block numbers for the existing blocks + * in the data fork, as the upper layers need them for read-modify-write + * operations. + */ +int +xfs_reflink_reserve_cow( struct xfs_inode *ip, - xfs_fileoff_t *offset_fsb, - xfs_fileoff_t end_fsb, - bool *skipped) + struct xfs_bmbt_irec *imap, + bool *shared) { - struct xfs_bmbt_irec got, prev, imap; - xfs_fileoff_t orig_end_fsb; - int nimaps, eof = 0, error = 0; - bool shared = false, trimmed = false; + struct xfs_bmbt_irec got, prev; + xfs_fileoff_t end_fsb, orig_end_fsb; + int eof = 0, error = 0; + bool trimmed; xfs_extnum_t idx; xfs_extlen_t align; - /* Already reserved? Skip the refcount btree access. */ - xfs_bmap_search_extents(ip, *offset_fsb, XFS_COW_FORK, &eof, &idx, + /* + * Search the COW fork extent list first. This serves two purposes: + * first this implement the speculative preallocation using cowextisze, + * so that we also unshared block adjacent to shared blocks instead + * of just the shared blocks themselves. Second the lookup in the + * extent list is generally faster than going out to the shared extent + * tree. + */ + xfs_bmap_search_extents(ip, imap->br_startoff, XFS_COW_FORK, &eof, &idx, &got, &prev); - if (!eof && got.br_startoff <= *offset_fsb) { - end_fsb = orig_end_fsb = got.br_startoff + got.br_blockcount; - trace_xfs_reflink_cow_found(ip, &got); - goto done; - } + if (!eof && got.br_startoff <= imap->br_startoff) { + trace_xfs_reflink_cow_found(ip, imap); + xfs_trim_extent(imap, got.br_startoff, got.br_blockcount); - /* Read extent from the source file. */ - nimaps = 1; - error = xfs_bmapi_read(ip, *offset_fsb, end_fsb - *offset_fsb, - &imap, &nimaps, 0); - if (error) - goto out_unlock; - ASSERT(nimaps == 1); + *shared = true; + return 0; + } /* Trim the mapping to the nearest shared extent boundary. */ - error = xfs_reflink_trim_around_shared(ip, &imap, &shared, &trimmed); + error = xfs_reflink_trim_around_shared(ip, imap, shared, &trimmed); if (error) - goto out_unlock; - - end_fsb = orig_end_fsb = imap.br_startoff + imap.br_blockcount; + return error; /* Not shared? Just report the (potentially capped) extent. */ - if (!shared) { - *skipped = true; - goto done; - } + if (!*shared) + return 0; /* * Fork all the shared blocks from our write offset until the end of @@ -278,72 +283,38 @@ __xfs_reflink_reserve_cow( */ error = xfs_qm_dqattach_locked(ip, 0); if (error) - goto out_unlock; + return error; + + end_fsb = orig_end_fsb = imap->br_startoff + imap->br_blockcount; align = xfs_eof_alignment(ip, xfs_get_cowextsz_hint(ip)); if (align) end_fsb = roundup_64(end_fsb, align); retry: - error = xfs_bmapi_reserve_delalloc(ip, XFS_COW_FORK, *offset_fsb, - end_fsb - *offset_fsb, &got, - &prev, &idx, eof); + error = xfs_bmapi_reserve_delalloc(ip, XFS_COW_FORK, imap->br_startoff, + end_fsb - imap->br_startoff, &got, &prev, &idx, eof); switch (error) { case 0: break; case -ENOSPC: case -EDQUOT: /* retry without any preallocation */ - trace_xfs_reflink_cow_enospc(ip, &imap); + trace_xfs_reflink_cow_enospc(ip, imap); if (end_fsb != orig_end_fsb) { end_fsb = orig_end_fsb; goto retry; } /*FALLTHRU*/ default: - goto out_unlock; + return error; } if (end_fsb != orig_end_fsb) xfs_inode_set_cowblocks_tag(ip); trace_xfs_reflink_cow_alloc(ip, &got); -done: - *offset_fsb = end_fsb; -out_unlock: - return error; -} - -/* Create a CoW reservation for part of a file. */ -int -xfs_reflink_reserve_cow_range( - struct xfs_inode *ip, - xfs_off_t offset, - xfs_off_t count) -{ - struct xfs_mount *mp = ip->i_mount; - xfs_fileoff_t offset_fsb, end_fsb; - bool skipped = false; - int error; - - trace_xfs_reflink_reserve_cow_range(ip, offset, count); - - offset_fsb = XFS_B_TO_FSBT(mp, offset); - end_fsb = XFS_B_TO_FSB(mp, offset + count); - - xfs_ilock(ip, XFS_ILOCK_EXCL); - while (offset_fsb < end_fsb) { - error = __xfs_reflink_reserve_cow(ip, &offset_fsb, end_fsb, - &skipped); - if (error) { - trace_xfs_reflink_reserve_cow_range_error(ip, error, - _RET_IP_); - break; - } - } - xfs_iunlock(ip, XFS_ILOCK_EXCL); - - return error; + return 0; } /* Allocate all CoW reservations covering a range of blocks in a file. */ @@ -358,9 +329,8 @@ __xfs_reflink_allocate_cow( struct xfs_defer_ops dfops; struct xfs_trans *tp; xfs_fsblock_t first_block; - xfs_fileoff_t next_fsb; int nimaps = 1, error; - bool skipped = false; + bool shared; xfs_defer_init(&dfops, &first_block); @@ -371,33 +341,38 @@ __xfs_reflink_allocate_cow( xfs_ilock(ip, XFS_ILOCK_EXCL); - next_fsb = *offset_fsb; - error = __xfs_reflink_reserve_cow(ip, &next_fsb, end_fsb, &skipped); + /* Read extent from the source file. */ + nimaps = 1; + error = xfs_bmapi_read(ip, *offset_fsb, end_fsb - *offset_fsb, + &imap, &nimaps, 0); + if (error) + goto out_unlock; + ASSERT(nimaps == 1); + + error = xfs_reflink_reserve_cow(ip, &imap, &shared); if (error) goto out_trans_cancel; - if (skipped) { - *offset_fsb = next_fsb; + if (!shared) { + *offset_fsb = imap.br_startoff + imap.br_blockcount; goto out_trans_cancel; } xfs_trans_ijoin(tp, ip, 0); - error = xfs_bmapi_write(tp, ip, *offset_fsb, next_fsb - *offset_fsb, + error = xfs_bmapi_write(tp, ip, imap.br_startoff, imap.br_blockcount, XFS_BMAPI_COWFORK, &first_block, XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK), &imap, &nimaps, &dfops); if (error) goto out_trans_cancel; - /* We might not have been able to map the whole delalloc extent */ - *offset_fsb = min(*offset_fsb + imap.br_blockcount, next_fsb); - error = xfs_defer_finish(&tp, &dfops, NULL); if (error) goto out_trans_cancel; error = xfs_trans_commit(tp); + *offset_fsb = imap.br_startoff + imap.br_blockcount; out_unlock: xfs_iunlock(ip, XFS_ILOCK_EXCL); return error; @@ -536,58 +511,49 @@ xfs_reflink_cancel_cow_blocks( xfs_fileoff_t offset_fsb, xfs_fileoff_t end_fsb) { - struct xfs_bmbt_irec irec; - xfs_filblks_t count_fsb; + struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK); + struct xfs_bmbt_irec got, prev, del; + xfs_extnum_t idx; xfs_fsblock_t firstfsb; struct xfs_defer_ops dfops; - int error = 0; - int nimaps; + int error = 0, eof = 0; if (!xfs_is_reflink_inode(ip)) return 0; - /* Go find the old extent in the CoW fork. */ - while (offset_fsb < end_fsb) { - nimaps = 1; - count_fsb = (xfs_filblks_t)(end_fsb - offset_fsb); - error = xfs_bmapi_read(ip, offset_fsb, count_fsb, &irec, - &nimaps, XFS_BMAPI_COWFORK); - if (error) - break; - ASSERT(nimaps == 1); - - trace_xfs_reflink_cancel_cow(ip, &irec); + xfs_bmap_search_extents(ip, offset_fsb, XFS_COW_FORK, &eof, &idx, + &got, &prev); + if (eof) + return 0; - if (irec.br_startblock == DELAYSTARTBLOCK) { - /* Free a delayed allocation. */ - xfs_mod_fdblocks(ip->i_mount, irec.br_blockcount, - false); - ip->i_delayed_blks -= irec.br_blockcount; + while (got.br_startoff < end_fsb) { + del = got; + xfs_trim_extent(&del, offset_fsb, end_fsb - offset_fsb); + trace_xfs_reflink_cancel_cow(ip, &del); - /* Remove the mapping from the CoW fork. */ - error = xfs_bunmapi_cow(ip, &irec); + if (isnullstartblock(del.br_startblock)) { + error = xfs_bmap_del_extent_delay(ip, XFS_COW_FORK, + &idx, &got, &del); if (error) break; - } else if (irec.br_startblock == HOLESTARTBLOCK) { - /* empty */ } else { xfs_trans_ijoin(*tpp, ip, 0); xfs_defer_init(&dfops, &firstfsb); /* Free the CoW orphan record. */ error = xfs_refcount_free_cow_extent(ip->i_mount, - &dfops, irec.br_startblock, - irec.br_blockcount); + &dfops, del.br_startblock, + del.br_blockcount); if (error) break; xfs_bmap_add_free(ip->i_mount, &dfops, - irec.br_startblock, irec.br_blockcount, + del.br_startblock, del.br_blockcount, NULL); /* Update quota accounting */ xfs_trans_mod_dquot_byino(*tpp, ip, XFS_TRANS_DQ_BCOUNT, - -(long)irec.br_blockcount); + -(long)del.br_blockcount); /* Roll the transaction */ error = xfs_defer_finish(tpp, &dfops, ip); @@ -597,15 +563,18 @@ xfs_reflink_cancel_cow_blocks( } /* Remove the mapping from the CoW fork. */ - error = xfs_bunmapi_cow(ip, &irec); - if (error) - break; + xfs_bmap_del_extent_cow(ip, &idx, &got, &del); } - /* Roll on... */ - offset_fsb = irec.br_startoff + irec.br_blockcount; + if (++idx >= ifp->if_bytes / sizeof(struct xfs_bmbt_rec)) + break; + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &got); } + /* clear tag if cow fork is emptied */ + if (!ifp->if_bytes) + xfs_inode_clear_cowblocks_tag(ip); + return error; } @@ -668,25 +637,26 @@ xfs_reflink_end_cow( xfs_off_t offset, xfs_off_t count) { - struct xfs_bmbt_irec irec; - struct xfs_bmbt_irec uirec; + struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK); + struct xfs_bmbt_irec got, prev, del; struct xfs_trans *tp; xfs_fileoff_t offset_fsb; xfs_fileoff_t end_fsb; - xfs_filblks_t count_fsb; xfs_fsblock_t firstfsb; struct xfs_defer_ops dfops; - int error; + int error, eof = 0; unsigned int resblks; - xfs_filblks_t ilen; xfs_filblks_t rlen; - int nimaps; + xfs_extnum_t idx; trace_xfs_reflink_end_cow(ip, offset, count); + /* No COW extents? That's easy! */ + if (ifp->if_bytes == 0) + return 0; + offset_fsb = XFS_B_TO_FSBT(ip->i_mount, offset); end_fsb = XFS_B_TO_FSB(ip->i_mount, offset + count); - count_fsb = (xfs_filblks_t)(end_fsb - offset_fsb); /* Start a rolling transaction to switch the mappings */ resblks = XFS_EXTENTADD_SPACE_RES(ip->i_mount, XFS_DATA_FORK); @@ -698,72 +668,65 @@ xfs_reflink_end_cow( xfs_ilock(ip, XFS_ILOCK_EXCL); xfs_trans_ijoin(tp, ip, 0); - /* Go find the old extent in the CoW fork. */ - while (offset_fsb < end_fsb) { - /* Read extent from the source file */ - nimaps = 1; - count_fsb = (xfs_filblks_t)(end_fsb - offset_fsb); - error = xfs_bmapi_read(ip, offset_fsb, count_fsb, &irec, - &nimaps, XFS_BMAPI_COWFORK); - if (error) - goto out_cancel; - ASSERT(nimaps == 1); + xfs_bmap_search_extents(ip, end_fsb - 1, XFS_COW_FORK, &eof, &idx, + &got, &prev); - ASSERT(irec.br_startblock != DELAYSTARTBLOCK); - trace_xfs_reflink_cow_remap(ip, &irec); + /* If there is a hole at end_fsb - 1 go to the previous extent */ + if (eof || got.br_startoff > end_fsb) { + ASSERT(idx > 0); + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, --idx), &got); + } - /* - * We can have a hole in the CoW fork if part of a directio - * write is CoW but part of it isn't. - */ - rlen = ilen = irec.br_blockcount; - if (irec.br_startblock == HOLESTARTBLOCK) + /* Walk backwards until we're out of the I/O range... */ + while (got.br_startoff + got.br_blockcount > offset_fsb) { + del = got; + xfs_trim_extent(&del, offset_fsb, end_fsb - offset_fsb); + + /* Extent delete may have bumped idx forward */ + if (!del.br_blockcount) { + idx--; goto next_extent; + } + + ASSERT(!isnullstartblock(got.br_startblock)); /* Unmap the old blocks in the data fork. */ - while (rlen) { - xfs_defer_init(&dfops, &firstfsb); - error = __xfs_bunmapi(tp, ip, irec.br_startoff, - &rlen, 0, 1, &firstfsb, &dfops); - if (error) - goto out_defer; - - /* - * Trim the extent to whatever got unmapped. - * Remember, bunmapi works backwards. - */ - uirec.br_startblock = irec.br_startblock + rlen; - uirec.br_startoff = irec.br_startoff + rlen; - uirec.br_blockcount = irec.br_blockcount - rlen; - irec.br_blockcount = rlen; - trace_xfs_reflink_cow_remap_piece(ip, &uirec); + xfs_defer_init(&dfops, &firstfsb); + rlen = del.br_blockcount; + error = __xfs_bunmapi(tp, ip, del.br_startoff, &rlen, 0, 1, + &firstfsb, &dfops); + if (error) + goto out_defer; - /* Free the CoW orphan record. */ - error = xfs_refcount_free_cow_extent(tp->t_mountp, - &dfops, uirec.br_startblock, - uirec.br_blockcount); - if (error) - goto out_defer; + /* Trim the extent to whatever got unmapped. */ + if (rlen) { + xfs_trim_extent(&del, del.br_startoff + rlen, + del.br_blockcount - rlen); + } + trace_xfs_reflink_cow_remap(ip, &del); - /* Map the new blocks into the data fork. */ - error = xfs_bmap_map_extent(tp->t_mountp, &dfops, - ip, &uirec); - if (error) - goto out_defer; + /* Free the CoW orphan record. */ + error = xfs_refcount_free_cow_extent(tp->t_mountp, &dfops, + del.br_startblock, del.br_blockcount); + if (error) + goto out_defer; - /* Remove the mapping from the CoW fork. */ - error = xfs_bunmapi_cow(ip, &uirec); - if (error) - goto out_defer; + /* Map the new blocks into the data fork. */ + error = xfs_bmap_map_extent(tp->t_mountp, &dfops, ip, &del); + if (error) + goto out_defer; - error = xfs_defer_finish(&tp, &dfops, ip); - if (error) - goto out_defer; - } + /* Remove the mapping from the CoW fork. */ + xfs_bmap_del_extent_cow(ip, &idx, &got, &del); + + error = xfs_defer_finish(&tp, &dfops, ip); + if (error) + goto out_defer; next_extent: - /* Roll on... */ - offset_fsb = irec.br_startoff + ilen; + if (idx < 0) + break; + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &got); } error = xfs_trans_commit(tp); @@ -774,7 +737,6 @@ next_extent: out_defer: xfs_defer_cancel(&dfops); -out_cancel: xfs_trans_cancel(tp); xfs_iunlock(ip, XFS_ILOCK_EXCL); out: @@ -1312,19 +1274,26 @@ out_error: */ int xfs_reflink_remap_range( - struct xfs_inode *src, - xfs_off_t srcoff, - struct xfs_inode *dest, - xfs_off_t destoff, - xfs_off_t len, - unsigned int flags) + struct file *file_in, + loff_t pos_in, + struct file *file_out, + loff_t pos_out, + u64 len, + bool is_dedupe) { + struct inode *inode_in = file_inode(file_in); + struct xfs_inode *src = XFS_I(inode_in); + struct inode *inode_out = file_inode(file_out); + struct xfs_inode *dest = XFS_I(inode_out); struct xfs_mount *mp = src->i_mount; + loff_t bs = inode_out->i_sb->s_blocksize; + bool same_inode = (inode_in == inode_out); xfs_fileoff_t sfsbno, dfsbno; xfs_filblks_t fsblen; - int error; xfs_extlen_t cowextsize; - bool is_same; + loff_t isize; + ssize_t ret; + loff_t blen; if (!xfs_sb_version_hasreflink(&mp->m_sb)) return -EOPNOTSUPP; @@ -1332,17 +1301,8 @@ xfs_reflink_remap_range( if (XFS_FORCED_SHUTDOWN(mp)) return -EIO; - /* Don't reflink realtime inodes */ - if (XFS_IS_REALTIME_INODE(src) || XFS_IS_REALTIME_INODE(dest)) - return -EINVAL; - - if (flags & ~XFS_REFLINK_ALL) - return -EINVAL; - - trace_xfs_reflink_remap_range(src, srcoff, len, dest, destoff); - /* Lock both files against IO */ - if (src->i_ino == dest->i_ino) { + if (same_inode) { xfs_ilock(src, XFS_IOLOCK_EXCL); xfs_ilock(src, XFS_MMAPLOCK_EXCL); } else { @@ -1350,39 +1310,126 @@ xfs_reflink_remap_range( xfs_lock_two_inodes(src, dest, XFS_MMAPLOCK_EXCL); } + /* Don't touch certain kinds of inodes */ + ret = -EPERM; + if (IS_IMMUTABLE(inode_out)) + goto out_unlock; + + ret = -ETXTBSY; + if (IS_SWAPFILE(inode_in) || IS_SWAPFILE(inode_out)) + goto out_unlock; + + + /* Don't reflink dirs, pipes, sockets... */ + ret = -EISDIR; + if (S_ISDIR(inode_in->i_mode) || S_ISDIR(inode_out->i_mode)) + goto out_unlock; + ret = -EINVAL; + if (S_ISFIFO(inode_in->i_mode) || S_ISFIFO(inode_out->i_mode)) + goto out_unlock; + if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode)) + goto out_unlock; + + /* Don't reflink realtime inodes */ + if (XFS_IS_REALTIME_INODE(src) || XFS_IS_REALTIME_INODE(dest)) + goto out_unlock; + + /* Don't share DAX file data for now. */ + if (IS_DAX(inode_in) || IS_DAX(inode_out)) + goto out_unlock; + + /* Are we going all the way to the end? */ + isize = i_size_read(inode_in); + if (isize == 0) { + ret = 0; + goto out_unlock; + } + + if (len == 0) + len = isize - pos_in; + + /* Ensure offsets don't wrap and the input is inside i_size */ + if (pos_in + len < pos_in || pos_out + len < pos_out || + pos_in + len > isize) + goto out_unlock; + + /* Don't allow dedupe past EOF in the dest file */ + if (is_dedupe) { + loff_t disize; + + disize = i_size_read(inode_out); + if (pos_out >= disize || pos_out + len > disize) + goto out_unlock; + } + + /* If we're linking to EOF, continue to the block boundary. */ + if (pos_in + len == isize) + blen = ALIGN(isize, bs) - pos_in; + else + blen = len; + + /* Only reflink if we're aligned to block boundaries */ + if (!IS_ALIGNED(pos_in, bs) || !IS_ALIGNED(pos_in + blen, bs) || + !IS_ALIGNED(pos_out, bs) || !IS_ALIGNED(pos_out + blen, bs)) + goto out_unlock; + + /* Don't allow overlapped reflink within the same file */ + if (same_inode) { + if (pos_out + blen > pos_in && pos_out < pos_in + blen) + goto out_unlock; + } + + /* Wait for the completion of any pending IOs on both files */ + inode_dio_wait(inode_in); + if (!same_inode) + inode_dio_wait(inode_out); + + ret = filemap_write_and_wait_range(inode_in->i_mapping, + pos_in, pos_in + len - 1); + if (ret) + goto out_unlock; + + ret = filemap_write_and_wait_range(inode_out->i_mapping, + pos_out, pos_out + len - 1); + if (ret) + goto out_unlock; + + trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out); + /* * Check that the extents are the same. */ - if (flags & XFS_REFLINK_DEDUPE) { - is_same = false; - error = xfs_compare_extents(VFS_I(src), srcoff, VFS_I(dest), - destoff, len, &is_same); - if (error) - goto out_error; + if (is_dedupe) { + bool is_same = false; + + ret = xfs_compare_extents(inode_in, pos_in, inode_out, pos_out, + len, &is_same); + if (ret) + goto out_unlock; if (!is_same) { - error = -EBADE; - goto out_error; + ret = -EBADE; + goto out_unlock; } } - error = xfs_reflink_set_inode_flag(src, dest); - if (error) - goto out_error; + ret = xfs_reflink_set_inode_flag(src, dest); + if (ret) + goto out_unlock; /* * Invalidate the page cache so that we can clear any CoW mappings * in the destination file. */ - truncate_inode_pages_range(&VFS_I(dest)->i_data, destoff, - PAGE_ALIGN(destoff + len) - 1); + truncate_inode_pages_range(&inode_out->i_data, pos_out, + PAGE_ALIGN(pos_out + len) - 1); - dfsbno = XFS_B_TO_FSBT(mp, destoff); - sfsbno = XFS_B_TO_FSBT(mp, srcoff); + dfsbno = XFS_B_TO_FSBT(mp, pos_out); + sfsbno = XFS_B_TO_FSBT(mp, pos_in); fsblen = XFS_B_TO_FSB(mp, len); - error = xfs_reflink_remap_blocks(src, sfsbno, dest, dfsbno, fsblen, - destoff + len); - if (error) - goto out_error; + ret = xfs_reflink_remap_blocks(src, sfsbno, dest, dfsbno, fsblen, + pos_out + len); + if (ret) + goto out_unlock; /* * Carry the cowextsize hint from src to dest if we're sharing the @@ -1390,26 +1437,24 @@ xfs_reflink_remap_range( * has a cowextsize hint, and the destination file does not. */ cowextsize = 0; - if (srcoff == 0 && len == i_size_read(VFS_I(src)) && + if (pos_in == 0 && len == i_size_read(inode_in) && (src->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE) && - destoff == 0 && len >= i_size_read(VFS_I(dest)) && + pos_out == 0 && len >= i_size_read(inode_out) && !(dest->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE)) cowextsize = src->i_d.di_cowextsize; - error = xfs_reflink_update_dest(dest, destoff + len, cowextsize); - if (error) - goto out_error; + ret = xfs_reflink_update_dest(dest, pos_out + len, cowextsize); -out_error: +out_unlock: xfs_iunlock(src, XFS_MMAPLOCK_EXCL); xfs_iunlock(src, XFS_IOLOCK_EXCL); if (src->i_ino != dest->i_ino) { xfs_iunlock(dest, XFS_MMAPLOCK_EXCL); xfs_iunlock(dest, XFS_IOLOCK_EXCL); } - if (error) - trace_xfs_reflink_remap_range_error(dest, error, _RET_IP_); - return error; + if (ret) + trace_xfs_reflink_remap_range_error(dest, ret, _RET_IP_); + return ret; } /* diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h index 5dc3c8ac12aa..fad11607c9ad 100644 --- a/fs/xfs/xfs_reflink.h +++ b/fs/xfs/xfs_reflink.h @@ -26,8 +26,8 @@ extern int xfs_reflink_find_shared(struct xfs_mount *mp, xfs_agnumber_t agno, extern int xfs_reflink_trim_around_shared(struct xfs_inode *ip, struct xfs_bmbt_irec *irec, bool *shared, bool *trimmed); -extern int xfs_reflink_reserve_cow_range(struct xfs_inode *ip, - xfs_off_t offset, xfs_off_t count); +extern int xfs_reflink_reserve_cow(struct xfs_inode *ip, + struct xfs_bmbt_irec *imap, bool *shared); extern int xfs_reflink_allocate_cow_range(struct xfs_inode *ip, xfs_off_t offset, xfs_off_t count); extern bool xfs_reflink_find_cow_mapping(struct xfs_inode *ip, xfs_off_t offset, @@ -43,11 +43,8 @@ extern int xfs_reflink_cancel_cow_range(struct xfs_inode *ip, xfs_off_t offset, extern int xfs_reflink_end_cow(struct xfs_inode *ip, xfs_off_t offset, xfs_off_t count); extern int xfs_reflink_recover_cow(struct xfs_mount *mp); -#define XFS_REFLINK_DEDUPE 1 /* only reflink if contents match */ -#define XFS_REFLINK_ALL (XFS_REFLINK_DEDUPE) -extern int xfs_reflink_remap_range(struct xfs_inode *src, xfs_off_t srcoff, - struct xfs_inode *dest, xfs_off_t destoff, xfs_off_t len, - unsigned int flags); +extern int xfs_reflink_remap_range(struct file *file_in, loff_t pos_in, + struct file *file_out, loff_t pos_out, u64 len, bool is_dedupe); extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip, struct xfs_trans **tpp); extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset, diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index 5f8d55d29a11..276d3023d60f 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -512,13 +512,13 @@ static struct attribute *xfs_error_attrs[] = { }; -struct kobj_type xfs_error_cfg_ktype = { +static struct kobj_type xfs_error_cfg_ktype = { .release = xfs_sysfs_release, .sysfs_ops = &xfs_sysfs_ops, .default_attrs = xfs_error_attrs, }; -struct kobj_type xfs_error_ktype = { +static struct kobj_type xfs_error_ktype = { .release = xfs_sysfs_release, .sysfs_ops = &xfs_sysfs_ops, }; diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index ad188d3a83f3..0907752be62d 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -3346,7 +3346,7 @@ DEFINE_INODE_IREC_EVENT(xfs_reflink_cow_alloc); DEFINE_INODE_IREC_EVENT(xfs_reflink_cow_found); DEFINE_INODE_IREC_EVENT(xfs_reflink_cow_enospc); -DEFINE_RW_EVENT(xfs_reflink_reserve_cow_range); +DEFINE_RW_EVENT(xfs_reflink_reserve_cow); DEFINE_RW_EVENT(xfs_reflink_allocate_cow_range); DEFINE_INODE_IREC_EVENT(xfs_reflink_bounce_dio_write); @@ -3356,9 +3356,7 @@ DEFINE_INODE_IREC_EVENT(xfs_reflink_trim_irec); DEFINE_SIMPLE_IO_EVENT(xfs_reflink_cancel_cow_range); DEFINE_SIMPLE_IO_EVENT(xfs_reflink_end_cow); DEFINE_INODE_IREC_EVENT(xfs_reflink_cow_remap); -DEFINE_INODE_IREC_EVENT(xfs_reflink_cow_remap_piece); -DEFINE_INODE_ERROR_EVENT(xfs_reflink_reserve_cow_range_error); DEFINE_INODE_ERROR_EVENT(xfs_reflink_allocate_cow_range_error); DEFINE_INODE_ERROR_EVENT(xfs_reflink_cancel_cow_range_error); DEFINE_INODE_ERROR_EVENT(xfs_reflink_end_cow_error); diff --git a/include/asm-generic/export.h b/include/asm-generic/export.h index 43199a049da5..63554e9f6e0c 100644 --- a/include/asm-generic/export.h +++ b/include/asm-generic/export.h @@ -70,7 +70,7 @@ KSYM(__kcrctab_\name): #include #define __EXPORT_SYMBOL(sym, val, sec) \ - __cond_export_sym(sym, val, sec, config_enabled(__KSYM_##sym)) + __cond_export_sym(sym, val, sec, __is_defined(__KSYM_##sym)) #define __cond_export_sym(sym, val, sec, conf) \ ___cond_export_sym(sym, val, sec, conf) #define ___cond_export_sym(sym, val, sec, enabled) \ diff --git a/include/linux/acpi.h b/include/linux/acpi.h index ddbeda6dbdc8..689a8b9b9c8f 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -326,6 +326,7 @@ struct pci_dev; int acpi_pci_irq_enable (struct pci_dev *dev); void acpi_penalize_isa_irq(int irq, int active); bool acpi_isa_irq_available(int irq); +void acpi_penalize_sci_irq(int irq, int trigger, int polarity); void acpi_pci_irq_disable (struct pci_dev *dev); extern int ec_read(u8 addr, u8 *val); diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index af596381fa0f..a428aec36ace 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -785,7 +785,7 @@ extern struct of_device_id __clk_of_table; * routines, one at of_clk_init(), and one at platform device probe */ #define CLK_OF_DECLARE_DRIVER(name, compat, fn) \ - static void name##_of_clk_init_driver(struct device_node *np) \ + static void __init name##_of_clk_init_driver(struct device_node *np) \ { \ of_node_clear_flag(np, OF_POPULATED); \ fn(np); \ diff --git a/include/linux/io.h b/include/linux/io.h index e2c8419278c1..82ef36eac8a1 100644 --- a/include/linux/io.h +++ b/include/linux/io.h @@ -141,4 +141,26 @@ enum { void *memremap(resource_size_t offset, size_t size, unsigned long flags); void memunmap(void *addr); +/* + * On x86 PAT systems we have memory tracking that keeps track of + * the allowed mappings on memory ranges. This tracking works for + * all the in-kernel mapping APIs (ioremap*), but where the user + * wishes to map a range from a physical device into user memory + * the tracking won't be updated. This API is to be used by + * drivers which remap physical device pages into userspace, + * and wants to make sure they are mapped WC and not UC. + */ +#ifndef arch_io_reserve_memtype_wc +static inline int arch_io_reserve_memtype_wc(resource_size_t base, + resource_size_t size) +{ + return 0; +} + +static inline void arch_io_free_memtype_wc(resource_size_t base, + resource_size_t size) +{ +} +#endif + #endif /* _LINUX_IO_H */ diff --git a/include/linux/iomap.h b/include/linux/iomap.h index e63e288dee83..7892f55a1866 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -19,11 +19,15 @@ struct vm_fault; #define IOMAP_UNWRITTEN 0x04 /* blocks allocated @blkno in unwritten state */ /* - * Flags for iomap mappings: + * Flags for all iomap mappings: */ -#define IOMAP_F_MERGED 0x01 /* contains multiple blocks/extents */ -#define IOMAP_F_SHARED 0x02 /* block shared with another file */ -#define IOMAP_F_NEW 0x04 /* blocks have been newly allocated */ +#define IOMAP_F_NEW 0x01 /* blocks have been newly allocated */ + +/* + * Flags that only need to be reported for IOMAP_REPORT requests: + */ +#define IOMAP_F_MERGED 0x10 /* contains multiple blocks/extents */ +#define IOMAP_F_SHARED 0x20 /* block shared with another file */ /* * Magic value for blkno: @@ -42,8 +46,9 @@ struct iomap { /* * Flags for iomap_begin / iomap_end. No flag implies a read. */ -#define IOMAP_WRITE (1 << 0) -#define IOMAP_ZERO (1 << 1) +#define IOMAP_WRITE (1 << 0) /* writing, must allocate blocks */ +#define IOMAP_ZERO (1 << 1) /* zeroing operation, may skip holes */ +#define IOMAP_REPORT (1 << 2) /* report extent status, e.g. FIEMAP */ struct iomap_ops { /* diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h index 15ec117ec537..8f2e059e4d45 100644 --- a/include/linux/kconfig.h +++ b/include/linux/kconfig.h @@ -31,7 +31,6 @@ * When CONFIG_BOOGER is not defined, we generate a (... 1, 0) pair, and when * the last step cherry picks the 2nd arg, we get a zero. */ -#define config_enabled(cfg) ___is_defined(cfg) #define __is_defined(x) ___is_defined(x) #define ___is_defined(val) ____is_defined(__ARG_PLACEHOLDER_##val) #define ____is_defined(arg1_or_junk) __take_second_arg(arg1_or_junk 1, 0) @@ -41,13 +40,13 @@ * otherwise. For boolean options, this is equivalent to * IS_ENABLED(CONFIG_FOO). */ -#define IS_BUILTIN(option) config_enabled(option) +#define IS_BUILTIN(option) __is_defined(option) /* * IS_MODULE(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'm', 0 * otherwise. */ -#define IS_MODULE(option) config_enabled(option##_MODULE) +#define IS_MODULE(option) __is_defined(option##_MODULE) /* * IS_REACHABLE(CONFIG_FOO) evaluates to 1 if the currently compiled diff --git a/include/linux/mm.h b/include/linux/mm.h index 3a191853faaa..a92c8d73aeaf 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1271,10 +1271,6 @@ extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void * extern int access_remote_vm(struct mm_struct *mm, unsigned long addr, void *buf, int len, unsigned int gup_flags); -long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, - unsigned long start, unsigned long nr_pages, - unsigned int foll_flags, struct page **pages, - struct vm_area_struct **vmas, int *nonblocking); long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, unsigned int gup_flags, struct page **pages, diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 7f2ae99e5daf..0f088f3a2fed 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -440,33 +440,7 @@ struct zone { seqlock_t span_seqlock; #endif - /* - * wait_table -- the array holding the hash table - * wait_table_hash_nr_entries -- the size of the hash table array - * wait_table_bits -- wait_table_size == (1 << wait_table_bits) - * - * The purpose of all these is to keep track of the people - * waiting for a page to become available and make them - * runnable again when possible. The trouble is that this - * consumes a lot of space, especially when so few things - * wait on pages at a given time. So instead of using - * per-page waitqueues, we use a waitqueue hash table. - * - * The bucket discipline is to sleep on the same queue when - * colliding and wake all in that wait queue when removing. - * When something wakes, it must check to be sure its page is - * truly available, a la thundering herd. The cost of a - * collision is great, but given the expected load of the - * table, they should be so rare as to be outweighed by the - * benefits from the saved space. - * - * __wait_on_page_locked() and unlock_page() in mm/filemap.c, are the - * primary users of these fields, and in mm/page_alloc.c - * free_area_init_core() performs the initialization of them. - */ - wait_queue_head_t *wait_table; - unsigned long wait_table_hash_nr_entries; - unsigned long wait_table_bits; + int initialized; /* Write-intensive fields used from the page allocator */ ZONE_PADDING(_pad1_) @@ -546,7 +520,7 @@ static inline bool zone_spans_pfn(const struct zone *zone, unsigned long pfn) static inline bool zone_is_initialized(struct zone *zone) { - return !!zone->wait_table; + return zone->initialized; } static inline bool zone_is_empty(struct zone *zone) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 060d0ede88df..4741ecdb9817 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1257,6 +1257,7 @@ extern u64 perf_swevent_set_period(struct perf_event *event); extern void perf_event_enable(struct perf_event *event); extern void perf_event_disable(struct perf_event *event); extern void perf_event_disable_local(struct perf_event *event); +extern void perf_event_disable_inatomic(struct perf_event *event); extern void perf_event_task_tick(void); #else /* !CONFIG_PERF_EVENTS: */ static inline void * diff --git a/ipc/msgutil.c b/ipc/msgutil.c index a521999de4f1..bf74eaa5c39f 100644 --- a/ipc/msgutil.c +++ b/ipc/msgutil.c @@ -53,7 +53,7 @@ static struct msg_msg *alloc_msg(size_t len) size_t alen; alen = min(len, DATALEN_MSG); - msg = kmalloc(sizeof(*msg) + alen, GFP_KERNEL); + msg = kmalloc(sizeof(*msg) + alen, GFP_KERNEL_ACCOUNT); if (msg == NULL) return NULL; @@ -65,7 +65,7 @@ static struct msg_msg *alloc_msg(size_t len) while (len > 0) { struct msg_msgseg *seg; alen = min(len, DATALEN_SEG); - seg = kmalloc(sizeof(*seg) + alen, GFP_KERNEL); + seg = kmalloc(sizeof(*seg) + alen, GFP_KERNEL_ACCOUNT); if (seg == NULL) goto out_err; *pseg = seg; diff --git a/kernel/events/core.c b/kernel/events/core.c index c6e47e97b33f..0e292132efac 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -1960,6 +1960,12 @@ void perf_event_disable(struct perf_event *event) } EXPORT_SYMBOL_GPL(perf_event_disable); +void perf_event_disable_inatomic(struct perf_event *event) +{ + event->pending_disable = 1; + irq_work_queue(&event->pending); +} + static void perf_set_shadow_time(struct perf_event *event, struct perf_event_context *ctx, u64 tstamp) @@ -7075,8 +7081,8 @@ static int __perf_event_overflow(struct perf_event *event, if (events && atomic_dec_and_test(&event->event_limit)) { ret = 1; event->pending_kill = POLL_HUP; - event->pending_disable = 1; - irq_work_queue(&event->pending); + + perf_event_disable_inatomic(event); } READ_ONCE(event->overflow_handler)(event, data, regs); @@ -8855,7 +8861,10 @@ EXPORT_SYMBOL_GPL(perf_pmu_register); void perf_pmu_unregister(struct pmu *pmu) { + int remove_device; + mutex_lock(&pmus_lock); + remove_device = pmu_bus_running; list_del_rcu(&pmu->entry); mutex_unlock(&pmus_lock); @@ -8869,10 +8878,12 @@ void perf_pmu_unregister(struct pmu *pmu) free_percpu(pmu->pmu_disable_count); if (pmu->type >= PERF_TYPE_MAX) idr_remove(&pmu_idr, pmu->type); - if (pmu->nr_addr_filters) - device_remove_file(pmu->dev, &dev_attr_nr_addr_filters); - device_del(pmu->dev); - put_device(pmu->dev); + if (remove_device) { + if (pmu->nr_addr_filters) + device_remove_file(pmu->dev, &dev_attr_nr_addr_filters); + device_del(pmu->dev); + put_device(pmu->dev); + } free_pmu_context(pmu); } EXPORT_SYMBOL_GPL(perf_pmu_unregister); diff --git a/kernel/kcov.c b/kernel/kcov.c index 8d44b3fea9d0..30e6d05aa5a9 100644 --- a/kernel/kcov.c +++ b/kernel/kcov.c @@ -53,8 +53,15 @@ void notrace __sanitizer_cov_trace_pc(void) /* * We are interested in code coverage as a function of a syscall inputs, * so we ignore code executed in interrupts. + * The checks for whether we are in an interrupt are open-coded, because + * 1. We can't use in_interrupt() here, since it also returns true + * when we are inside local_bh_disable() section. + * 2. We don't want to use (in_irq() | in_serving_softirq() | in_nmi()), + * since that leads to slower generated code (three separate tests, + * one for each of the flags). */ - if (!t || in_interrupt()) + if (!t || (preempt_count() & (HARDIRQ_MASK | SOFTIRQ_OFFSET + | NMI_MASK))) return; mode = READ_ONCE(t->kcov_mode); if (mode == KCOV_MODE_TRACE) { diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 1e7f5da648d9..6ccb08f57fcb 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -498,9 +498,9 @@ static int enter_state(suspend_state_t state) #ifndef CONFIG_SUSPEND_SKIP_SYNC trace_suspend_resume(TPS("sync_filesystems"), 0, true); - printk(KERN_INFO "PM: Syncing filesystems ... "); + pr_info("PM: Syncing filesystems ... "); sys_sync(); - printk("done.\n"); + pr_cont("done.\n"); trace_suspend_resume(TPS("sync_filesystems"), 0, false); #endif diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 94732d1ab00a..42d4027f9e26 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -7515,11 +7515,27 @@ static struct kmem_cache *task_group_cache __read_mostly; DECLARE_PER_CPU(cpumask_var_t, load_balance_mask); DECLARE_PER_CPU(cpumask_var_t, select_idle_mask); +#define WAIT_TABLE_BITS 8 +#define WAIT_TABLE_SIZE (1 << WAIT_TABLE_BITS) +static wait_queue_head_t bit_wait_table[WAIT_TABLE_SIZE] __cacheline_aligned; + +wait_queue_head_t *bit_waitqueue(void *word, int bit) +{ + const int shift = BITS_PER_LONG == 32 ? 5 : 6; + unsigned long val = (unsigned long)word << shift | bit; + + return bit_wait_table + hash_long(val, WAIT_TABLE_BITS); +} +EXPORT_SYMBOL(bit_waitqueue); + void __init sched_init(void) { int i, j; unsigned long alloc_size = 0, ptr; + for (i = 0; i < WAIT_TABLE_SIZE; i++) + init_waitqueue_head(bit_wait_table + i); + #ifdef CONFIG_FAIR_GROUP_SCHED alloc_size += 2 * nr_cpu_ids * sizeof(void **); #endif diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index d941c97dfbc3..c242944f5cbd 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -8839,7 +8839,6 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent) { struct sched_entity *se; struct cfs_rq *cfs_rq; - struct rq *rq; int i; tg->cfs_rq = kzalloc(sizeof(cfs_rq) * nr_cpu_ids, GFP_KERNEL); @@ -8854,8 +8853,6 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent) init_cfs_bandwidth(tg_cfs_bandwidth(tg)); for_each_possible_cpu(i) { - rq = cpu_rq(i); - cfs_rq = kzalloc_node(sizeof(struct cfs_rq), GFP_KERNEL, cpu_to_node(i)); if (!cfs_rq) diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c index 4f7053579fe3..9453efe9b25a 100644 --- a/kernel/sched/wait.c +++ b/kernel/sched/wait.c @@ -480,16 +480,6 @@ void wake_up_bit(void *word, int bit) } EXPORT_SYMBOL(wake_up_bit); -wait_queue_head_t *bit_waitqueue(void *word, int bit) -{ - const int shift = BITS_PER_LONG == 32 ? 5 : 6; - const struct zone *zone = page_zone(virt_to_page(word)); - unsigned long val = (unsigned long)word << shift | bit; - - return &zone->wait_table[hash_long(val, zone->wait_table_bits)]; -} -EXPORT_SYMBOL(bit_waitqueue); - /* * Manipulate the atomic_t address to produce a better bit waitqueue table hash * index (we're keying off bit -1, but that would produce a horrible hash diff --git a/kernel/softirq.c b/kernel/softirq.c index 1bf81ef91375..744fa611cae0 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -58,7 +58,7 @@ static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp DEFINE_PER_CPU(struct task_struct *, ksoftirqd); const char * const softirq_to_name[NR_SOFTIRQS] = { - "HI", "TIMER", "NET_TX", "NET_RX", "BLOCK", "BLOCK_IOPOLL", + "HI", "TIMER", "NET_TX", "NET_RX", "BLOCK", "IRQ_POLL", "TASKLET", "SCHED", "HRTIMER", "RCU" }; diff --git a/kernel/time/timer.c b/kernel/time/timer.c index 2d47980a1bc4..c611c47de884 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -878,7 +878,7 @@ static inline struct timer_base *get_timer_base(u32 tflags) #ifdef CONFIG_NO_HZ_COMMON static inline struct timer_base * -__get_target_base(struct timer_base *base, unsigned tflags) +get_target_base(struct timer_base *base, unsigned tflags) { #ifdef CONFIG_SMP if ((tflags & TIMER_PINNED) || !base->migration_enabled) @@ -891,25 +891,27 @@ __get_target_base(struct timer_base *base, unsigned tflags) static inline void forward_timer_base(struct timer_base *base) { + unsigned long jnow = READ_ONCE(jiffies); + /* * We only forward the base when it's idle and we have a delta between * base clock and jiffies. */ - if (!base->is_idle || (long) (jiffies - base->clk) < 2) + if (!base->is_idle || (long) (jnow - base->clk) < 2) return; /* * If the next expiry value is > jiffies, then we fast forward to * jiffies otherwise we forward to the next expiry value. */ - if (time_after(base->next_expiry, jiffies)) - base->clk = jiffies; + if (time_after(base->next_expiry, jnow)) + base->clk = jnow; else base->clk = base->next_expiry; } #else static inline struct timer_base * -__get_target_base(struct timer_base *base, unsigned tflags) +get_target_base(struct timer_base *base, unsigned tflags) { return get_timer_this_cpu_base(tflags); } @@ -917,14 +919,6 @@ __get_target_base(struct timer_base *base, unsigned tflags) static inline void forward_timer_base(struct timer_base *base) { } #endif -static inline struct timer_base * -get_target_base(struct timer_base *base, unsigned tflags) -{ - struct timer_base *target = __get_target_base(base, tflags); - - forward_timer_base(target); - return target; -} /* * We are using hashed locking: Holding per_cpu(timer_bases[x]).lock means @@ -943,7 +937,14 @@ static struct timer_base *lock_timer_base(struct timer_list *timer, { for (;;) { struct timer_base *base; - u32 tf = timer->flags; + u32 tf; + + /* + * We need to use READ_ONCE() here, otherwise the compiler + * might re-read @tf between the check for TIMER_MIGRATING + * and spin_lock(). + */ + tf = READ_ONCE(timer->flags); if (!(tf & TIMER_MIGRATING)) { base = get_timer_base(tf); @@ -964,6 +965,8 @@ __mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only) unsigned long clk = 0, flags; int ret = 0; + BUG_ON(!timer->function); + /* * This is a common optimization triggered by the networking code - if * the timer is re-modified to have the same timeout or ends up in the @@ -972,13 +975,16 @@ __mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only) if (timer_pending(timer)) { if (timer->expires == expires) return 1; + /* - * Take the current timer_jiffies of base, but without holding - * the lock! + * We lock timer base and calculate the bucket index right + * here. If the timer ends up in the same bucket, then we + * just update the expiry time and avoid the whole + * dequeue/enqueue dance. */ - base = get_timer_base(timer->flags); - clk = base->clk; + base = lock_timer_base(timer, &flags); + clk = base->clk; idx = calc_wheel_index(expires, clk); /* @@ -988,14 +994,14 @@ __mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only) */ if (idx == timer_get_idx(timer)) { timer->expires = expires; - return 1; + ret = 1; + goto out_unlock; } + } else { + base = lock_timer_base(timer, &flags); } timer_stats_timer_set_start_info(timer); - BUG_ON(!timer->function); - - base = lock_timer_base(timer, &flags); ret = detach_if_pending(timer, base, false); if (!ret && pending_only) @@ -1025,12 +1031,16 @@ __mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only) } } + /* Try to forward a stale timer base clock */ + forward_timer_base(base); + timer->expires = expires; /* * If 'idx' was calculated above and the base time did not advance - * between calculating 'idx' and taking the lock, only enqueue_timer() - * and trigger_dyntick_cpu() is required. Otherwise we need to - * (re)calculate the wheel index via internal_add_timer(). + * between calculating 'idx' and possibly switching the base, only + * enqueue_timer() and trigger_dyntick_cpu() is required. Otherwise + * we need to (re)calculate the wheel index via + * internal_add_timer(). */ if (idx != UINT_MAX && clk == base->clk) { enqueue_timer(base, timer, idx); @@ -1510,12 +1520,16 @@ u64 get_next_timer_interrupt(unsigned long basej, u64 basem) is_max_delta = (nextevt == base->clk + NEXT_TIMER_MAX_DELTA); base->next_expiry = nextevt; /* - * We have a fresh next event. Check whether we can forward the base: + * We have a fresh next event. Check whether we can forward the + * base. We can only do that when @basej is past base->clk + * otherwise we might rewind base->clk. */ - if (time_after(nextevt, jiffies)) - base->clk = jiffies; - else if (time_after(nextevt, base->clk)) - base->clk = nextevt; + if (time_after(basej, base->clk)) { + if (time_after(nextevt, basej)) + base->clk = basej; + else if (time_after(nextevt, base->clk)) + base->clk = nextevt; + } if (time_before_eq(nextevt, basej)) { expires = basem; diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 33bc56cf60d7..b01e547d4d04 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -198,6 +198,7 @@ config FRAME_WARN int "Warn for stack frames larger than (needs gcc 4.4)" range 0 8192 default 0 if KASAN + default 2048 if GCC_PLUGIN_LATENT_ENTROPY default 1024 if !64BIT default 2048 if 64BIT help diff --git a/lib/genalloc.c b/lib/genalloc.c index 0a1139644d32..144fe6b1a03e 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -292,7 +292,7 @@ unsigned long gen_pool_alloc_algo(struct gen_pool *pool, size_t size, struct gen_pool_chunk *chunk; unsigned long addr = 0; int order = pool->min_alloc_order; - int nbits, start_bit = 0, end_bit, remain; + int nbits, start_bit, end_bit, remain; #ifndef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG BUG_ON(in_nmi()); @@ -307,6 +307,7 @@ unsigned long gen_pool_alloc_algo(struct gen_pool *pool, size_t size, if (size > atomic_read(&chunk->avail)) continue; + start_bit = 0; end_bit = chunk_size(chunk) >> order; retry: start_bit = algo(chunk->bits, end_bit, start_bit, diff --git a/lib/stackdepot.c b/lib/stackdepot.c index 60f77f1d470a..4d830e299989 100644 --- a/lib/stackdepot.c +++ b/lib/stackdepot.c @@ -50,7 +50,7 @@ STACK_ALLOC_ALIGN) #define STACK_ALLOC_INDEX_BITS (DEPOT_STACK_BITS - \ STACK_ALLOC_NULL_PROTECTION_BITS - STACK_ALLOC_OFFSET_BITS) -#define STACK_ALLOC_SLABS_CAP 1024 +#define STACK_ALLOC_SLABS_CAP 8192 #define STACK_ALLOC_MAX_SLABS \ (((1LL << (STACK_ALLOC_INDEX_BITS)) < STACK_ALLOC_SLABS_CAP) ? \ (1LL << (STACK_ALLOC_INDEX_BITS)) : STACK_ALLOC_SLABS_CAP) diff --git a/mm/Kconfig b/mm/Kconfig index be0ee11fa0d9..86e3e0e74d20 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -187,7 +187,7 @@ config MEMORY_HOTPLUG bool "Allow for memory hot-add" depends on SPARSEMEM || X86_64_ACPI_NUMA depends on ARCH_ENABLE_MEMORY_HOTPLUG - depends on !KASAN + depends on COMPILE_TEST || !KASAN config MEMORY_HOTPLUG_SPARSE def_bool y diff --git a/mm/filemap.c b/mm/filemap.c index 849f459ad078..c7fe2f16503f 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -790,9 +790,7 @@ EXPORT_SYMBOL(__page_cache_alloc); */ wait_queue_head_t *page_waitqueue(struct page *page) { - const struct zone *zone = page_zone(page); - - return &zone->wait_table[hash_ptr(page, zone->wait_table_bits)]; + return bit_waitqueue(page, 0); } EXPORT_SYMBOL(page_waitqueue); diff --git a/mm/gup.c b/mm/gup.c index 7aa113c2d373..ec4f82704b6f 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -526,7 +526,7 @@ static int check_vma_flags(struct vm_area_struct *vma, unsigned long gup_flags) * instead of __get_user_pages. __get_user_pages should be used only if * you need some special @gup_flags. */ -long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, +static long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, unsigned int gup_flags, struct page **pages, struct vm_area_struct **vmas, int *nonblocking) @@ -631,7 +631,6 @@ next_page: } while (nr_pages); return i; } -EXPORT_SYMBOL(__get_user_pages); bool vma_permits_fault(struct vm_area_struct *vma, unsigned int fault_flags) { diff --git a/mm/kmemleak.c b/mm/kmemleak.c index a5e453cf05c4..e5355a5b423f 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -1453,8 +1453,11 @@ static void kmemleak_scan(void) read_lock(&tasklist_lock); do_each_thread(g, p) { - scan_block(task_stack_page(p), task_stack_page(p) + - THREAD_SIZE, NULL); + void *stack = try_get_task_stack(p); + if (stack) { + scan_block(stack, stack + THREAD_SIZE, NULL); + put_task_stack(p); + } } while_each_thread(g, p); read_unlock(&tasklist_lock); } diff --git a/mm/list_lru.c b/mm/list_lru.c index 1d05cb9d363d..234676e31edd 100644 --- a/mm/list_lru.c +++ b/mm/list_lru.c @@ -554,6 +554,8 @@ int __list_lru_init(struct list_lru *lru, bool memcg_aware, err = memcg_init_list_lru(lru, memcg_aware); if (err) { kfree(lru->node); + /* Do this so a list_lru_destroy() doesn't crash: */ + lru->node = NULL; goto out; } diff --git a/mm/memcontrol.c b/mm/memcontrol.c index ae052b5e3315..0f870ba43942 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1917,6 +1917,15 @@ retry: current->flags & PF_EXITING)) goto force; + /* + * Prevent unbounded recursion when reclaim operations need to + * allocate memory. This might exceed the limits temporarily, + * but we prefer facilitating memory reclaim and getting back + * under the limit over triggering OOM kills in these cases. + */ + if (unlikely(current->flags & PF_MEMALLOC)) + goto force; + if (unlikely(task_in_memcg_oom(current))) goto nomem; diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 962927309b6e..cad4b9125695 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -268,7 +268,6 @@ void __init register_page_bootmem_info_node(struct pglist_data *pgdat) unsigned long i, pfn, end_pfn, nr_pages; int node = pgdat->node_id; struct page *page; - struct zone *zone; nr_pages = PAGE_ALIGN(sizeof(struct pglist_data)) >> PAGE_SHIFT; page = virt_to_page(pgdat); @@ -276,19 +275,6 @@ void __init register_page_bootmem_info_node(struct pglist_data *pgdat) for (i = 0; i < nr_pages; i++, page++) get_page_bootmem(node, page, NODE_INFO); - zone = &pgdat->node_zones[0]; - for (; zone < pgdat->node_zones + MAX_NR_ZONES - 1; zone++) { - if (zone_is_initialized(zone)) { - nr_pages = zone->wait_table_hash_nr_entries - * sizeof(wait_queue_head_t); - nr_pages = PAGE_ALIGN(nr_pages) >> PAGE_SHIFT; - page = virt_to_page(zone->wait_table); - - for (i = 0; i < nr_pages; i++, page++) - get_page_bootmem(node, page, NODE_INFO); - } - } - pfn = pgdat->node_start_pfn; end_pfn = pgdat_end_pfn(pgdat); @@ -2131,7 +2117,6 @@ void try_offline_node(int nid) unsigned long start_pfn = pgdat->node_start_pfn; unsigned long end_pfn = start_pfn + pgdat->node_spanned_pages; unsigned long pfn; - int i; for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) { unsigned long section_nr = pfn_to_section_nr(pfn); @@ -2158,20 +2143,6 @@ void try_offline_node(int nid) */ node_set_offline(nid); unregister_one_node(nid); - - /* free waittable in each zone */ - for (i = 0; i < MAX_NR_ZONES; i++) { - struct zone *zone = pgdat->node_zones + i; - - /* - * wait_table may be allocated from boot memory, - * here only free if it's allocated by vmalloc. - */ - if (is_vmalloc_addr(zone->wait_table)) { - vfree(zone->wait_table); - zone->wait_table = NULL; - } - } } EXPORT_SYMBOL(try_offline_node); diff --git a/mm/nommu.c b/mm/nommu.c index db5fd1795298..8b8faaf2a9e9 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -109,7 +109,7 @@ unsigned int kobjsize(const void *objp) return PAGE_SIZE << compound_order(page); } -long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, +static long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, unsigned long nr_pages, unsigned int foll_flags, struct page **pages, struct vm_area_struct **vmas, int *nonblocking) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 2b3bf6767d54..8fd42aa7c4bd 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4224,7 +4224,7 @@ static void show_migration_types(unsigned char type) } *p = '\0'; - printk("(%s) ", tmp); + printk(KERN_CONT "(%s) ", tmp); } /* @@ -4335,7 +4335,8 @@ void show_free_areas(unsigned int filter) free_pcp += per_cpu_ptr(zone->pageset, cpu)->pcp.count; show_node(zone); - printk("%s" + printk(KERN_CONT + "%s" " free:%lukB" " min:%lukB" " low:%lukB" @@ -4382,8 +4383,8 @@ void show_free_areas(unsigned int filter) K(zone_page_state(zone, NR_FREE_CMA_PAGES))); printk("lowmem_reserve[]:"); for (i = 0; i < MAX_NR_ZONES; i++) - printk(" %ld", zone->lowmem_reserve[i]); - printk("\n"); + printk(KERN_CONT " %ld", zone->lowmem_reserve[i]); + printk(KERN_CONT "\n"); } for_each_populated_zone(zone) { @@ -4394,7 +4395,7 @@ void show_free_areas(unsigned int filter) if (skip_free_areas_node(filter, zone_to_nid(zone))) continue; show_node(zone); - printk("%s: ", zone->name); + printk(KERN_CONT "%s: ", zone->name); spin_lock_irqsave(&zone->lock, flags); for (order = 0; order < MAX_ORDER; order++) { @@ -4412,11 +4413,12 @@ void show_free_areas(unsigned int filter) } spin_unlock_irqrestore(&zone->lock, flags); for (order = 0; order < MAX_ORDER; order++) { - printk("%lu*%lukB ", nr[order], K(1UL) << order); + printk(KERN_CONT "%lu*%lukB ", + nr[order], K(1UL) << order); if (nr[order]) show_migration_types(types[order]); } - printk("= %lukB\n", K(total)); + printk(KERN_CONT "= %lukB\n", K(total)); } hugetlb_show_meminfo(); @@ -4976,72 +4978,6 @@ void __ref build_all_zonelists(pg_data_t *pgdat, struct zone *zone) #endif } -/* - * Helper functions to size the waitqueue hash table. - * Essentially these want to choose hash table sizes sufficiently - * large so that collisions trying to wait on pages are rare. - * But in fact, the number of active page waitqueues on typical - * systems is ridiculously low, less than 200. So this is even - * conservative, even though it seems large. - * - * The constant PAGES_PER_WAITQUEUE specifies the ratio of pages to - * waitqueues, i.e. the size of the waitq table given the number of pages. - */ -#define PAGES_PER_WAITQUEUE 256 - -#ifndef CONFIG_MEMORY_HOTPLUG -static inline unsigned long wait_table_hash_nr_entries(unsigned long pages) -{ - unsigned long size = 1; - - pages /= PAGES_PER_WAITQUEUE; - - while (size < pages) - size <<= 1; - - /* - * Once we have dozens or even hundreds of threads sleeping - * on IO we've got bigger problems than wait queue collision. - * Limit the size of the wait table to a reasonable size. - */ - size = min(size, 4096UL); - - return max(size, 4UL); -} -#else -/* - * A zone's size might be changed by hot-add, so it is not possible to determine - * a suitable size for its wait_table. So we use the maximum size now. - * - * The max wait table size = 4096 x sizeof(wait_queue_head_t). ie: - * - * i386 (preemption config) : 4096 x 16 = 64Kbyte. - * ia64, x86-64 (no preemption): 4096 x 20 = 80Kbyte. - * ia64, x86-64 (preemption) : 4096 x 24 = 96Kbyte. - * - * The maximum entries are prepared when a zone's memory is (512K + 256) pages - * or more by the traditional way. (See above). It equals: - * - * i386, x86-64, powerpc(4K page size) : = ( 2G + 1M)byte. - * ia64(16K page size) : = ( 8G + 4M)byte. - * powerpc (64K page size) : = (32G +16M)byte. - */ -static inline unsigned long wait_table_hash_nr_entries(unsigned long pages) -{ - return 4096UL; -} -#endif - -/* - * This is an integer logarithm so that shifts can be used later - * to extract the more random high bits from the multiplicative - * hash function before the remainder is taken. - */ -static inline unsigned long wait_table_bits(unsigned long size) -{ - return ffz(~size); -} - /* * Initially all pages are reserved - free ones are freed * up by free_all_bootmem() once the early boot process is @@ -5304,49 +5240,6 @@ void __init setup_per_cpu_pageset(void) alloc_percpu(struct per_cpu_nodestat); } -static noinline __ref -int zone_wait_table_init(struct zone *zone, unsigned long zone_size_pages) -{ - int i; - size_t alloc_size; - - /* - * The per-page waitqueue mechanism uses hashed waitqueues - * per zone. - */ - zone->wait_table_hash_nr_entries = - wait_table_hash_nr_entries(zone_size_pages); - zone->wait_table_bits = - wait_table_bits(zone->wait_table_hash_nr_entries); - alloc_size = zone->wait_table_hash_nr_entries - * sizeof(wait_queue_head_t); - - if (!slab_is_available()) { - zone->wait_table = (wait_queue_head_t *) - memblock_virt_alloc_node_nopanic( - alloc_size, zone->zone_pgdat->node_id); - } else { - /* - * This case means that a zone whose size was 0 gets new memory - * via memory hot-add. - * But it may be the case that a new node was hot-added. In - * this case vmalloc() will not be able to use this new node's - * memory - this wait_table must be initialized to use this new - * node itself as well. - * To use this new node's memory, further consideration will be - * necessary. - */ - zone->wait_table = vmalloc(alloc_size); - } - if (!zone->wait_table) - return -ENOMEM; - - for (i = 0; i < zone->wait_table_hash_nr_entries; ++i) - init_waitqueue_head(zone->wait_table + i); - - return 0; -} - static __meminit void zone_pcp_init(struct zone *zone) { /* @@ -5367,10 +5260,7 @@ int __meminit init_currently_empty_zone(struct zone *zone, unsigned long size) { struct pglist_data *pgdat = zone->zone_pgdat; - int ret; - ret = zone_wait_table_init(zone, size); - if (ret) - return ret; + pgdat->nr_zones = zone_idx(zone) + 1; zone->zone_start_pfn = zone_start_pfn; @@ -5382,6 +5272,7 @@ int __meminit init_currently_empty_zone(struct zone *zone, zone_start_pfn, (zone_start_pfn + size)); zone_init_free_lists(zone); + zone->initialized = 1; return 0; } diff --git a/mm/slab.c b/mm/slab.c index 090fb26b3a39..0b0550ca85b4 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -233,6 +233,7 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent) spin_lock_init(&parent->list_lock); parent->free_objects = 0; parent->free_touched = 0; + parent->num_slabs = 0; } #define MAKE_LIST(cachep, listp, slab, nodeid) \ @@ -966,7 +967,7 @@ static int setup_kmem_cache_node(struct kmem_cache *cachep, * guaranteed to be valid until irq is re-enabled, because it will be * freed after synchronize_sched(). */ - if (force_change) + if (old_shared && force_change) synchronize_sched(); fail: @@ -1382,24 +1383,27 @@ slab_out_of_memory(struct kmem_cache *cachep, gfp_t gfpflags, int nodeid) for_each_kmem_cache_node(cachep, node, n) { unsigned long active_objs = 0, num_objs = 0, free_objects = 0; unsigned long active_slabs = 0, num_slabs = 0; + unsigned long num_slabs_partial = 0, num_slabs_free = 0; + unsigned long num_slabs_full; spin_lock_irqsave(&n->list_lock, flags); - list_for_each_entry(page, &n->slabs_full, lru) { - active_objs += cachep->num; - active_slabs++; - } + num_slabs = n->num_slabs; list_for_each_entry(page, &n->slabs_partial, lru) { active_objs += page->active; - active_slabs++; + num_slabs_partial++; } list_for_each_entry(page, &n->slabs_free, lru) - num_slabs++; + num_slabs_free++; free_objects += n->free_objects; spin_unlock_irqrestore(&n->list_lock, flags); - num_slabs += active_slabs; num_objs = num_slabs * cachep->num; + active_slabs = num_slabs - num_slabs_free; + num_slabs_full = num_slabs - + (num_slabs_partial + num_slabs_free); + active_objs += (num_slabs_full * cachep->num); + pr_warn(" node %d: slabs: %ld/%ld, objs: %ld/%ld, free: %ld\n", node, active_slabs, num_slabs, active_objs, num_objs, free_objects); @@ -2314,6 +2318,7 @@ static int drain_freelist(struct kmem_cache *cache, page = list_entry(p, struct page, lru); list_del(&page->lru); + n->num_slabs--; /* * Safe to drop the lock. The slab is no longer linked * to the cache. @@ -2752,6 +2757,8 @@ static void cache_grow_end(struct kmem_cache *cachep, struct page *page) list_add_tail(&page->lru, &(n->slabs_free)); else fixup_slab_list(cachep, n, page, &list); + + n->num_slabs++; STATS_INC_GROWN(cachep); n->free_objects += cachep->num - page->active; spin_unlock(&n->list_lock); @@ -3443,6 +3450,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp, page = list_last_entry(&n->slabs_free, struct page, lru); list_move(&page->lru, list); + n->num_slabs--; } } @@ -4099,6 +4107,8 @@ void get_slabinfo(struct kmem_cache *cachep, struct slabinfo *sinfo) unsigned long num_objs; unsigned long active_slabs = 0; unsigned long num_slabs, free_objects = 0, shared_avail = 0; + unsigned long num_slabs_partial = 0, num_slabs_free = 0; + unsigned long num_slabs_full = 0; const char *name; char *error = NULL; int node; @@ -4111,33 +4121,34 @@ void get_slabinfo(struct kmem_cache *cachep, struct slabinfo *sinfo) check_irq_on(); spin_lock_irq(&n->list_lock); - list_for_each_entry(page, &n->slabs_full, lru) { - if (page->active != cachep->num && !error) - error = "slabs_full accounting error"; - active_objs += cachep->num; - active_slabs++; - } + num_slabs += n->num_slabs; + list_for_each_entry(page, &n->slabs_partial, lru) { if (page->active == cachep->num && !error) error = "slabs_partial accounting error"; if (!page->active && !error) error = "slabs_partial accounting error"; active_objs += page->active; - active_slabs++; + num_slabs_partial++; } + list_for_each_entry(page, &n->slabs_free, lru) { if (page->active && !error) error = "slabs_free accounting error"; - num_slabs++; + num_slabs_free++; } + free_objects += n->free_objects; if (n->shared) shared_avail += n->shared->avail; spin_unlock_irq(&n->list_lock); } - num_slabs += active_slabs; num_objs = num_slabs * cachep->num; + active_slabs = num_slabs - num_slabs_free; + num_slabs_full = num_slabs - (num_slabs_partial + num_slabs_free); + active_objs += (num_slabs_full * cachep->num); + if (num_objs - active_objs != free_objects && !error) error = "free_objects accounting error"; diff --git a/mm/slab.h b/mm/slab.h index 9653f2e2591a..bc05fdc3edce 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -432,6 +432,7 @@ struct kmem_cache_node { struct list_head slabs_partial; /* partial list first, better asm code */ struct list_head slabs_full; struct list_head slabs_free; + unsigned long num_slabs; unsigned long free_objects; unsigned int free_limit; unsigned int colour_next; /* Per-node cache coloring */ diff --git a/mm/vmscan.c b/mm/vmscan.c index 744f926af442..76fda2268148 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -3043,7 +3043,9 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *memcg, sc.gfp_mask, sc.reclaim_idx); + current->flags |= PF_MEMALLOC; nr_reclaimed = do_try_to_free_pages(zonelist, &sc); + current->flags &= ~PF_MEMALLOC; trace_mm_vmscan_memcg_reclaim_end(nr_reclaimed); diff --git a/security/keys/Kconfig b/security/keys/Kconfig index f826e8739023..d942c7c2bc0a 100644 --- a/security/keys/Kconfig +++ b/security/keys/Kconfig @@ -41,7 +41,7 @@ config BIG_KEYS bool "Large payload keys" depends on KEYS depends on TMPFS - select CRYPTO + depends on (CRYPTO_ANSI_CPRNG = y || CRYPTO_DRBG = y) select CRYPTO_AES select CRYPTO_ECB select CRYPTO_RNG diff --git a/security/keys/big_key.c b/security/keys/big_key.c index c0b3030b5634..835c1ab30d01 100644 --- a/security/keys/big_key.c +++ b/security/keys/big_key.c @@ -9,6 +9,7 @@ * 2 of the Licence, or (at your option) any later version. */ +#define pr_fmt(fmt) "big_key: "fmt #include #include #include @@ -341,44 +342,48 @@ error: */ static int __init big_key_init(void) { - return register_key_type(&key_type_big_key); -} - -/* - * Initialize big_key crypto and RNG algorithms - */ -static int __init big_key_crypto_init(void) -{ - int ret = -EINVAL; + struct crypto_skcipher *cipher; + struct crypto_rng *rng; + int ret; - /* init RNG */ - big_key_rng = crypto_alloc_rng(big_key_rng_name, 0, 0); - if (IS_ERR(big_key_rng)) { - big_key_rng = NULL; - return -EFAULT; + rng = crypto_alloc_rng(big_key_rng_name, 0, 0); + if (IS_ERR(rng)) { + pr_err("Can't alloc rng: %ld\n", PTR_ERR(rng)); + return PTR_ERR(rng); } + big_key_rng = rng; + /* seed RNG */ - ret = crypto_rng_reset(big_key_rng, NULL, crypto_rng_seedsize(big_key_rng)); - if (ret) - goto error; + ret = crypto_rng_reset(rng, NULL, crypto_rng_seedsize(rng)); + if (ret) { + pr_err("Can't reset rng: %d\n", ret); + goto error_rng; + } /* init block cipher */ - big_key_skcipher = crypto_alloc_skcipher(big_key_alg_name, - 0, CRYPTO_ALG_ASYNC); - if (IS_ERR(big_key_skcipher)) { - big_key_skcipher = NULL; - ret = -EFAULT; - goto error; + cipher = crypto_alloc_skcipher(big_key_alg_name, 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(cipher)) { + ret = PTR_ERR(cipher); + pr_err("Can't alloc crypto: %d\n", ret); + goto error_rng; + } + + big_key_skcipher = cipher; + + ret = register_key_type(&key_type_big_key); + if (ret < 0) { + pr_err("Can't register type: %d\n", ret); + goto error_cipher; } return 0; -error: +error_cipher: + crypto_free_skcipher(big_key_skcipher); +error_rng: crypto_free_rng(big_key_rng); - big_key_rng = NULL; return ret; } -device_initcall(big_key_init); -late_initcall(big_key_crypto_init); +late_initcall(big_key_init); diff --git a/security/keys/proc.c b/security/keys/proc.c index f0611a6368cd..b9f531c9e4fa 100644 --- a/security/keys/proc.c +++ b/security/keys/proc.c @@ -181,7 +181,7 @@ static int proc_keys_show(struct seq_file *m, void *v) struct timespec now; unsigned long timo; key_ref_t key_ref, skey_ref; - char xbuf[12]; + char xbuf[16]; int rc; struct keyring_search_context ctx = { diff --git a/sound/core/seq/seq_timer.c b/sound/core/seq/seq_timer.c index dcc102813aef..37d9cfbc29f9 100644 --- a/sound/core/seq/seq_timer.c +++ b/sound/core/seq/seq_timer.c @@ -448,8 +448,8 @@ snd_seq_real_time_t snd_seq_timer_get_cur_time(struct snd_seq_timer *tmr) ktime_get_ts64(&tm); tm = timespec64_sub(tm, tmr->last_update); - cur_time.tv_nsec = tm.tv_nsec; - cur_time.tv_sec = tm.tv_sec; + cur_time.tv_nsec += tm.tv_nsec; + cur_time.tv_sec += tm.tv_sec; snd_seq_sanity_real_time(&cur_time); } spin_unlock_irqrestore(&tmr->lock, flags); diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c index d17937b92331..7e3aa50b21f9 100644 --- a/sound/pci/asihpi/hpioctl.c +++ b/sound/pci/asihpi/hpioctl.c @@ -111,7 +111,7 @@ long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return -EINVAL; hm = kmalloc(sizeof(*hm), GFP_KERNEL); - hr = kmalloc(sizeof(*hr), GFP_KERNEL); + hr = kzalloc(sizeof(*hr), GFP_KERNEL); if (!hm || !hr) { err = -ENOMEM; goto out; diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index c3469f756ec2..c64d986009a9 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -341,8 +341,7 @@ enum { /* quirks for Nvidia */ #define AZX_DCAPS_PRESET_NVIDIA \ - (AZX_DCAPS_NO_MSI | /*AZX_DCAPS_ALIGN_BUFSIZE |*/ \ - AZX_DCAPS_NO_64BIT | AZX_DCAPS_CORBRP_SELF_CLEAR |\ + (AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\ AZX_DCAPS_SNOOP_TYPE(NVIDIA)) #define AZX_DCAPS_PRESET_CTHDA \ @@ -1716,6 +1715,10 @@ static int azx_first_init(struct azx *chip) } } + /* NVidia hardware normally only supports up to 40 bits of DMA */ + if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA) + dma_bits = 40; + /* disable 64bit DMA address on some devices */ if (chip->driver_caps & AZX_DCAPS_NO_64BIT) { dev_dbg(card->dev, "Disabling 64bit DMA\n"); diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index b58e8c76346a..2f909dd8b7b8 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5811,8 +5811,6 @@ static const struct hda_model_fixup alc269_fixup_models[] = { #define ALC295_STANDARD_PINS \ {0x12, 0xb7a60130}, \ {0x14, 0x90170110}, \ - {0x17, 0x21014020}, \ - {0x18, 0x21a19030}, \ {0x21, 0x04211020} #define ALC298_STANDARD_PINS \ @@ -5858,10 +5856,18 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = { {0x14, 0x90170110}, {0x1b, 0x02011020}, {0x21, 0x0221101f}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x14, 0x90170110}, + {0x1b, 0x01011020}, + {0x21, 0x0221101f}), SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, {0x14, 0x90170130}, {0x1b, 0x01014020}, {0x21, 0x0221103f}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x14, 0x90170130}, + {0x1b, 0x01011020}, + {0x21, 0x0221103f}), SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, {0x14, 0x90170130}, {0x1b, 0x02011020}, @@ -6039,7 +6045,13 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = { ALC292_STANDARD_PINS, {0x13, 0x90a60140}), SND_HDA_PIN_QUIRK(0x10ec0295, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, - ALC295_STANDARD_PINS), + ALC295_STANDARD_PINS, + {0x17, 0x21014020}, + {0x18, 0x21a19030}), + SND_HDA_PIN_QUIRK(0x10ec0295, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, + ALC295_STANDARD_PINS, + {0x17, 0x21014040}, + {0x18, 0x21a19050}), SND_HDA_PIN_QUIRK(0x10ec0298, 0x1028, "Dell", ALC298_FIXUP_DELL1_MIC_NO_PRESENCE, ALC298_STANDARD_PINS, {0x17, 0x90170110}), @@ -6613,6 +6625,7 @@ enum { ALC891_FIXUP_HEADSET_MODE, ALC891_FIXUP_DELL_MIC_NO_PRESENCE, ALC662_FIXUP_ACER_VERITON, + ALC892_FIXUP_ASROCK_MOBO, }; static const struct hda_fixup alc662_fixups[] = { @@ -6889,6 +6902,16 @@ static const struct hda_fixup alc662_fixups[] = { { } } }, + [ALC892_FIXUP_ASROCK_MOBO] = { + .type = HDA_FIXUP_PINS, + .v.pins = (const struct hda_pintbl[]) { + { 0x15, 0x40f000f0 }, /* disabled */ + { 0x16, 0x40f000f0 }, /* disabled */ + { 0x18, 0x01014011 }, /* LO */ + { 0x1a, 0x01014012 }, /* LO */ + { } + } + }, }; static const struct snd_pci_quirk alc662_fixup_tbl[] = { @@ -6926,6 +6949,7 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = { SND_PCI_QUIRK(0x144d, 0xc051, "Samsung R720", ALC662_FIXUP_IDEAPAD), SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo Ideapad Y550P", ALC662_FIXUP_IDEAPAD), SND_PCI_QUIRK(0x17aa, 0x3a0d, "Lenovo Ideapad Y550", ALC662_FIXUP_IDEAPAD), + SND_PCI_QUIRK(0x1849, 0x5892, "ASRock B150M", ALC892_FIXUP_ASROCK_MOBO), SND_PCI_QUIRK(0x19da, 0xa130, "Zotac Z68", ALC662_FIXUP_ZOTAC_Z68), SND_PCI_QUIRK(0x1b0a, 0x01b8, "ACER Veriton", ALC662_FIXUP_ACER_VERITON), SND_PCI_QUIRK(0x1b35, 0x2206, "CZC P10T", ALC662_FIXUP_CZC_P10T), diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index c60a776e815d..8a59d4782a0f 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -2907,6 +2907,23 @@ AU0828_DEVICE(0x2040, 0x7260, "Hauppauge", "HVR-950Q"), AU0828_DEVICE(0x2040, 0x7213, "Hauppauge", "HVR-950Q"), AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"), +/* Syntek STK1160 */ +{ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE | + USB_DEVICE_ID_MATCH_INT_CLASS | + USB_DEVICE_ID_MATCH_INT_SUBCLASS, + .idVendor = 0x05e1, + .idProduct = 0x0408, + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL, + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Syntek", + .product_name = "STK1160", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_AUDIO_ALIGN_TRANSFER + } +}, + /* Digidesign Mbox */ { /* Thanks to Clemens Ladisch */ diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c index 4490601a9235..e8a1f699058a 100644 --- a/tools/objtool/builtin-check.c +++ b/tools/objtool/builtin-check.c @@ -754,7 +754,7 @@ static struct rela *find_switch_table(struct objtool_file *file, if (insn->type == INSN_JUMP_UNCONDITIONAL && insn->jump_dest && (insn->jump_dest->offset <= insn->offset || - insn->jump_dest->offset >= orig_insn->offset)) + insn->jump_dest->offset > orig_insn->offset)) break; text_rela = find_rela_by_dest_range(insn->sec, insn->offset, diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 28510e72618a..2907b7b78654 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1346,21 +1346,19 @@ unsigned long kvm_vcpu_gfn_to_hva_prot(struct kvm_vcpu *vcpu, gfn_t gfn, bool *w static int get_user_page_nowait(unsigned long start, int write, struct page **page) { - int flags = FOLL_TOUCH | FOLL_NOWAIT | FOLL_HWPOISON | FOLL_GET; + int flags = FOLL_NOWAIT | FOLL_HWPOISON; if (write) flags |= FOLL_WRITE; - return __get_user_pages(current, current->mm, start, 1, flags, page, - NULL, NULL); + return get_user_pages(start, 1, flags, page, NULL); } static inline int check_user_page_hwpoison(unsigned long addr) { - int rc, flags = FOLL_TOUCH | FOLL_HWPOISON | FOLL_WRITE; + int rc, flags = FOLL_HWPOISON | FOLL_WRITE; - rc = __get_user_pages(current, current->mm, addr, 1, - flags, NULL, NULL, NULL); + rc = get_user_pages(addr, 1, flags, NULL, NULL); return rc == -EHWPOISON; }