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| author | Dave McCracken <dmccr@us.ibm.com> | 2006-09-25 23:31:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 08:48:51 -0700 |
| commit | 46a82b2d5591335277ed2930611f6acb4ce654ed (patch) | |
| tree | e90bc1843701af2012bae92564f7109027a8244f /include/asm-i386 | |
| parent | d2e7b7d0aa021847c59f882b066e7d3812902870 (diff) | |
| download | op-kernel-dev-46a82b2d5591335277ed2930611f6acb4ce654ed.zip op-kernel-dev-46a82b2d5591335277ed2930611f6acb4ce654ed.tar.gz | |
[PATCH] Standardize pxx_page macros
One of the changes necessary for shared page tables is to standardize the
pxx_page macros. pte_page and pmd_page have always returned the struct
page associated with their entry, while pte_page_kernel and pmd_page_kernel
have returned the kernel virtual address. pud_page and pgd_page, on the
other hand, return the kernel virtual address.
Shared page tables needs pud_page and pgd_page to return the actual page
structures. There are very few actual users of these functions, so it is
simple to standardize their usage.
Since this is basic cleanup, I am submitting these changes as a standalone
patch. Per Hugh Dickins' comments about it, I am also changing the
pxx_page_kernel macros to pxx_page_vaddr to clarify their meaning.
Signed-off-by: Dave McCracken <dmccr@us.ibm.com>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-i386')
| -rw-r--r-- | include/asm-i386/pgtable-3level.h | 2 | ||||
| -rw-r--r-- | include/asm-i386/pgtable.h | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-i386/pgtable-3level.h b/include/asm-i386/pgtable-3level.h index dccb1b3..807ed9e 100644 --- a/include/asm-i386/pgtable-3level.h +++ b/include/asm-i386/pgtable-3level.h @@ -77,7 +77,7 @@ static inline void pud_clear (pud_t * pud) { } #define pud_page(pud) \ ((struct page *) __va(pud_val(pud) & PAGE_MASK)) -#define pud_page_kernel(pud) \ +#define pud_page_vaddr(pud) \ ((unsigned long) __va(pud_val(pud) & PAGE_MASK)) diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h index 09697fe..c04b3d0 100644 --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h @@ -364,11 +364,11 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) #define pte_index(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(address)) + ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)) -#define pmd_page_kernel(pmd) \ +#define pmd_page_vaddr(pmd) \ ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) /* |
