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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2012-12-12 22:52:36 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-13 02:38:35 +0100 |
| commit | 816422ad76474fed8052b6f7b905a054d082e59a (patch) | |
| tree | 9918f68e9c5f93be98940b4b7b478e1637547926 /arch/mips/include/asm/pgtable.h | |
| parent | mm/hugetlb.c: fix warning on freeing hwpoisoned hugepage (diff) | |
| download | linux-816422ad76474fed8052b6f7b905a054d082e59a.tar.xz linux-816422ad76474fed8052b6f7b905a054d082e59a.zip | |
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/include/asm/pgtable.h')
| -rw-r--r-- | arch/mips/include/asm/pgtable.h | 11 |
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); |