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| author | Shaohua Li <shaohua.li@intel.com> | 2011-07-09 02:39:41 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-09 08:14:43 +0400 |
| commit | 0b43c3aab0137595335b08b340a3f3e5af9818a6 (patch) | |
| tree | dad2556800b89d42875470744a25533d1d983989 /mm | |
| parent | 215ddd6664ced067afca7eebd2d1eb83f064ff5a (diff) | |
| download | linux-0b43c3aab0137595335b08b340a3f3e5af9818a6.tar.xz | |
mm: __tlb_remove_page() check the correct batch
__tlb_remove_page() switches to a new batch page, but still checks space
in the old batch. This check always fails, and causes a forced tlb flush.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c index 40b7531ee8ba..9b8a01d941cb 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -305,6 +305,7 @@ int __tlb_remove_page(struct mmu_gather *tlb, struct page *page) if (batch->nr == batch->max) { if (!tlb_next_batch(tlb)) return 0; + batch = tlb->active; } VM_BUG_ON(batch->nr > batch->max); |