diff options
| author | Hugh Dickins <hugh@veritas.com> | 2005-03-13 00:21:15 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-03-13 00:21:15 -0800 |
| commit | 772bb69313ec9939720bbee9681cda32f71a33b9 (patch) | |
| tree | 4a7203bcace741c96c65ca9f14dd0a99966a0b62 /include/asm-generic/4level-fixup.h | |
| parent | f71513bf9a2ea83fcd2e2c985884a6ab806d24fd (diff) | |
[PATCH] ptwalk: pud and pmd folded
Nick Piggin's patch to fold away most of the pud and pmd levels when not
required. Adjusted to define minimal pud_addr_end (in the 4LEVEL_HACK
case too) and pmd_addr_end. Responsible for half of the savings.
Signed-off-by: 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-generic/4level-fixup.h')
| -rw-r--r-- | include/asm-generic/4level-fixup.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h index 02675742f472..c20ec257ecc0 100644 --- a/include/asm-generic/4level-fixup.h +++ b/include/asm-generic/4level-fixup.h @@ -2,6 +2,7 @@ #define _4LEVEL_FIXUP_H #define __ARCH_HAS_4LEVEL_HACK +#define __PAGETABLE_PUD_FOLDED #define PUD_SIZE PGDIR_SIZE #define PUD_MASK PGDIR_MASK @@ -31,4 +32,7 @@ #define pud_free(x) do { } while (0) #define __pud_free_tlb(tlb, x) do { } while (0) +#undef pud_addr_end +#define pud_addr_end(addr, end) (end) + #endif |