bootmem, x86: Add weak version of reserve_bootmem_generic

It will be used memblock_x86_to_bootmem converting

It is an wrapper for reserve_bootmem, and x86 64bit is using special one.

Also clean up that version for x86_64. We don't need to take care of numa
path for that, bootmem can handle it how

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index bca7909..90e0545 100644 (file)
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -1069,9 +1069,3 @@ void mark_rodata_ro(void)
 #endif
 }
 #endif
-
-int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
-                                  int flags)
-{
-       return reserve_bootmem(phys, len, flags);
-}

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index ee41bba..634fa08 100644 (file)
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -799,13 +799,10 @@ void mark_rodata_ro(void)
 
 #endif
 
+#ifndef CONFIG_NO_BOOTMEM
 int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
                                   int flags)
 {
-#ifdef CONFIG_NUMA
-       int nid, next_nid;
-       int ret;
-#endif
        unsigned long pfn = phys >> PAGE_SHIFT;
 
        if (pfn >= max_pfn) {
@@ -821,21 +818,7 @@ int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
                return -EFAULT;
        }
 
-       /* Should check here against the e820 map to avoid double free */
-#ifdef CONFIG_NUMA
-       nid = phys_to_nid(phys);
-       next_nid = phys_to_nid(phys + len - 1);
-       if (nid == next_nid)
-               ret = reserve_bootmem_node(NODE_DATA(nid), phys, len, flags);
-       else
-               ret = reserve_bootmem(phys, len, flags);
-
-       if (ret != 0)
-               return ret;
-
-#else
        reserve_bootmem(phys, len, flags);
-#endif
 
        if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) {
                dma_reserve += len / PAGE_SIZE;
@@ -844,6 +827,7 @@ int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
 
        return 0;
 }
+#endif
 
 int kern_addr_valid(unsigned long addr)
 {

diff --git a/mm/bootmem.c b/mm/bootmem.c
index 142c84a..bde170d 100644 (file)
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -526,6 +526,12 @@ int __init reserve_bootmem(unsigned long addr, unsigned long size,
 }
 
 #ifndef CONFIG_NO_BOOTMEM
+int __weak __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
+                                  int flags)
+{
+       return reserve_bootmem(phys, len, flags);
+}
+
 static unsigned long __init align_idx(struct bootmem_data *bdata,
                                      unsigned long idx, unsigned long step)
 {