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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-powerpc/pgtable-4k.h | |
| parent | d2e7b7d0aa021847c59f882b066e7d3812902870 (diff) | |
| download | kernel_samsung_tuna-46a82b2d5591335277ed2930611f6acb4ce654ed.zip kernel_samsung_tuna-46a82b2d5591335277ed2930611f6acb4ce654ed.tar.gz kernel_samsung_tuna-46a82b2d5591335277ed2930611f6acb4ce654ed.tar.bz2 | |
[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-powerpc/pgtable-4k.h')
| -rw-r--r-- | include/asm-powerpc/pgtable-4k.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/asm-powerpc/pgtable-4k.h b/include/asm-powerpc/pgtable-4k.h index e703615..345d9b0 100644 --- a/include/asm-powerpc/pgtable-4k.h +++ b/include/asm-powerpc/pgtable-4k.h @@ -88,10 +88,11 @@ #define pgd_bad(pgd) (pgd_val(pgd) == 0) #define pgd_present(pgd) (pgd_val(pgd) != 0) #define pgd_clear(pgdp) (pgd_val(*(pgdp)) = 0) -#define pgd_page(pgd) (pgd_val(pgd) & ~PGD_MASKED_BITS) +#define pgd_page_vaddr(pgd) (pgd_val(pgd) & ~PGD_MASKED_BITS) +#define pgd_page(pgd) virt_to_page(pgd_page_vaddr(pgd)) #define pud_offset(pgdp, addr) \ - (((pud_t *) pgd_page(*(pgdp))) + \ + (((pud_t *) pgd_page_vaddr(*(pgdp))) + \ (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))) #define pud_ERROR(e) \ |