diff options
| author | Andrew Morton <akpm@osdl.org> | 2004-05-09 23:25:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-05-09 23:25:57 -0700 |
| commit | fa8f2c5000cafcaa87182c5f2c021ae1ae52299c (patch) | |
| tree | bd478a07d90971bc9bb2a05e96d0f1f0ed0327d8 /include/asm-generic/tlb.h | |
| parent | 1ec430966896297cd850a36f1ac082a79de30eca (diff) | |
[PATCH] Reduce TLB flushing during process migration
From: Martin Hicks <mort@wildopensource.com>
Another optimization patch from Jack Steiner, intended to reduce TLB
flushes during process migration.
Most architextures should define tlb_migrate_prepare() to be flush_tlb_mm(),
but on i386, it would be a wasted flush, because i386 disconnects previous
cpus from the tlb flush automatically.
Diffstat (limited to 'include/asm-generic/tlb.h')
| -rw-r--r-- | include/asm-generic/tlb.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index 1358c5136889..69c11ff2e984 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -146,4 +146,6 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) __pmd_free_tlb(tlb, pmdp); \ } while (0) +#define tlb_migrate_prepare(mm) do { } while(0) + #endif /* _ASM_GENERIC__TLB_H */ |