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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2012-12-12 13:52:36 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-12 17:38:35 -0800
commit816422ad76474fed8052b6f7b905a054d082e59a (patch)
tree9918f68e9c5f93be98940b4b7b478e1637547926 /arch/mips
parent56f2fb147659e05b1e87b99791bf44b988d38545 (diff)
downloadlinux-linaro-stable-816422ad76474fed8052b6f7b905a054d082e59a.tar.gz
asm-generic, mm: pgtable: consolidate zero page helpers
We have two different implementation of is_zero_pfn() and my_zero_pfn() helpers: for architectures with and without zero page coloring. Let's consolidate them in <asm-generic/pgtable.h>. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/include/asm/pgtable.h11
1 files changed, 1 insertions, 10 deletions
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index c02158be836c..14490e9443af 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -76,16 +76,7 @@ extern unsigned long zero_page_mask;
#define ZERO_PAGE(vaddr) \
(virt_to_page((void *)(empty_zero_page + (((unsigned long)(vaddr)) & zero_page_mask))))
-
-#define is_zero_pfn is_zero_pfn
-static inline int is_zero_pfn(unsigned long pfn)
-{
- extern unsigned long zero_pfn;
- unsigned long offset_from_zero_pfn = pfn - zero_pfn;
- return offset_from_zero_pfn <= (zero_page_mask >> PAGE_SHIFT);
-}
-
-#define my_zero_pfn(addr) page_to_pfn(ZERO_PAGE(addr))
+#define __HAVE_COLOR_ZERO_PAGE
extern void paging_init(void);