x86: lds - Use PAGE_SIZE instead of numeric constant

It's much better to use PAGE_SIZE then magic 4096
(though it's almost synonym in most cases on x86 but
not for *all* cases ;)

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
index f1148ac..2ffa965 100644 (file)
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -38,7 +38,7 @@ SECTIONS
 
   /* read-only */
   .text : AT(ADDR(.text) - LOAD_OFFSET) {
-       . = ALIGN(4096); /* not really needed, already page aligned */
+       . = ALIGN(PAGE_SIZE); /* not really needed, already page aligned */
        *(.text.page_aligned)
        TEXT_TEXT
        SCHED_TEXT
@@ -70,21 +70,21 @@ SECTIONS
   RODATA
 
   /* writeable */
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .data : AT(ADDR(.data) - LOAD_OFFSET) {      /* Data */
        DATA_DATA
        CONSTRUCTORS
        } :data
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
        __nosave_begin = .;
        *(.data.nosave)
-       . = ALIGN(4096);
+       . = ALIGN(PAGE_SIZE);
        __nosave_end = .;
   }
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
        *(.data.page_aligned)
        *(.data.idt)
@@ -108,7 +108,7 @@ SECTIONS
   }
 
   /* might get freed after init */
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
        __smp_locks = .;
        *(.smp_locks)
@@ -120,10 +120,10 @@ SECTIONS
    * after boot. Always make sure that ALIGN() directive is present after
    * the section which contains __smp_alt_end.
    */
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
 
   /* will be freed after init */
-  . = ALIGN(4096);             /* Init code and data */
+  . = ALIGN(PAGE_SIZE);                /* Init code and data */
   .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
        __init_begin = .;
        _sinittext = .;
@@ -174,23 +174,23 @@ SECTIONS
        EXIT_DATA
   }
 #if defined(CONFIG_BLK_DEV_INITRD)
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
        __initramfs_start = .;
        *(.init.ramfs)
        __initramfs_end = .;
   }
 #endif
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .data.percpu  : AT(ADDR(.data.percpu) - LOAD_OFFSET) {
        __per_cpu_start = .;
        *(.data.percpu)
        *(.data.percpu.shared_aligned)
        __per_cpu_end = .;
   }
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   /* freed after init ends here */
-       
+
   .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
        __init_end = .;
        __bss_start = .;                /* BSS */
@@ -200,7 +200,7 @@ SECTIONS
        __bss_stop = .;
        _end = . ;
        /* This is where the kernel creates the early boot page tables */
-       . = ALIGN(4096);
+       . = ALIGN(PAGE_SIZE);
        pg0 = . ;
   }
 

diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index 0992b99..5e9ec1b 100644 (file)
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -37,7 +37,7 @@ SECTIONS
        KPROBES_TEXT
        *(.fixup)
        *(.gnu.warning)
-       _etext = .;                     /* End of text section */
+       _etext = .;             /* End of text section */
   } :text = 0x9090
 
   . = ALIGN(16);               /* Exception table */
@@ -60,7 +60,7 @@ SECTIONS
        __tracedata_end = .;
   }
 
-  . = ALIGN(PAGE_SIZE);        /* Align data segment to page size boundary */
+  . = ALIGN(PAGE_SIZE);                /* Align data segment to page size boundary */
                                /* Data */
   .data : AT(ADDR(.data) - LOAD_OFFSET) {
        DATA_DATA
@@ -119,7 +119,7 @@ SECTIONS
   .vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3))
                { *(.vsyscall_3) }
 
-  . = VSYSCALL_VIRT_ADDR + 4096;
+  . = VSYSCALL_VIRT_ADDR + PAGE_SIZE;
 
 #undef VSYSCALL_ADDR
 #undef VSYSCALL_PHYS_ADDR
@@ -134,23 +134,23 @@ SECTIONS
        *(.data.init_task)
   }:data.init
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
        *(.data.page_aligned)
   }
 
   /* might get freed after init */
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __smp_alt_begin = .;
   __smp_locks = .;
   .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
        *(.smp_locks)
   }
   __smp_locks_end = .;
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __smp_alt_end = .;
 
-  . = ALIGN(4096);             /* Init code and data */
+  . = ALIGN(PAGE_SIZE);                /* Init code and data */
   __init_begin = .;
   .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
        _sinittext = .;
@@ -191,7 +191,7 @@ SECTIONS
   .altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
        *(.altinstructions)
   }
-  __alt_instructions_end = .; 
+  __alt_instructions_end = .;
   .altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
        *(.altinstr_replacement)
   }
@@ -207,25 +207,25 @@ SECTIONS
 /* vdso blob that is mapped into user space */
   vdso_start = . ;
   .vdso  : AT(ADDR(.vdso) - LOAD_OFFSET) { *(.vdso) }
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   vdso_end = .;
 
 #ifdef CONFIG_BLK_DEV_INITRD
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __initramfs_start = .;
   .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) }
   __initramfs_end = .;
 #endif
 
-  PERCPU(4096)
+  PERCPU(PAGE_SIZE)
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __init_end = .;
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __nosave_begin = .;
   .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) }
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __nosave_end = .;
 
   __bss_start = .;             /* BSS */