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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2009-02-05 22:30:57 +0300 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy@goop.org> | 2009-02-06 23:31:48 +0300 |
| commit | 7cfb81024bc1dbe8ad2bf5affd58a6a7ad4172ba (patch) | |
| tree | c223fd9057d3ec87b4990f94e4d04bb0e97c0134 /arch/x86/include/asm/pgtable.h | |
| parent | 777cba16aac5a1096db0b936912eb7fd06fb0cc5 (diff) | |
| download | linux-7cfb81024bc1dbe8ad2bf5affd58a6a7ad4172ba.tar.xz | |
x86: unify pud_index
Impact: cleanup
Unify and demacro pud_index.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'arch/x86/include/asm/pgtable.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index c1a36dd1e598..a51a97ade636 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -500,6 +500,12 @@ static inline struct page *pgd_page(pgd_t pgd) { return pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT); } + +/* to find an entry in a page-table-directory. */ +static inline unsigned pud_index(unsigned long address) +{ + return (address >> PUD_SHIFT) & (PTRS_PER_PUD - 1); +} #endif /* PAGETABLE_LEVELS > 3 */ #endif /* __ASSEMBLY__ */ |