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authorAndrew Morton <akpm@osdl.org>2006-09-30 23:29:29 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-01 00:39:33 -0700
commitbd4c8ce41a2e2f0c5bf54343ab54e8e09faec021 (patch)
treee8a7d3cfafbe6ee35672953718ba4223e450d938 /mm/memory.c
parentd025c9db7f31fc0554ce7fb2dfc78d35a77f3487 (diff)
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[PATCH] invalidate_inode_pages2(): ignore page refcounts
The recent fix to invalidate_inode_pages() (git commit 016eb4a) managed to unfix invalidate_inode_pages2(). The problem is that various bits of code in the kernel can take transient refs on pages: the page scanner will do this when inspecting a batch of pages, and the lru_cache_add() batching pagevecs also hold a ref. Net result is transient failures in invalidate_inode_pages2(). This affects NFS directory invalidation (observed) and presumably also block-backed direct-io (not yet reported). Fix it by reverting invalidate_inode_pages2() back to the old version which ignores the page refcounts. We may come up with something more clever later, but for now we need a 2.6.18 fix for NFS. Cc: Chuck Lever <cel@citi.umich.edu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/memory.c')
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