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authorNick Piggin <npiggin@suse.de>2007-05-06 23:49:04 +0200
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 21:12:51 +0200
commit6fe6900e1e5b6fa9e5c59aa5061f244fe3f467e2 (patch)
tree8bbfe5072279227cc50a941ad4813908082426a1 /drivers/hwmon/lm87.c
parentslab: ensure cache_alloc_refill terminates (diff)
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mm: make read_cache_page synchronous
Ensure pages are uptodate after returning from read_cache_page, which allows us to cut out most of the filesystem-internal PageUptodate calls. I didn't have a great look down the call chains, but this appears to fixes 7 possible use-before uptodate in hfs, 2 in hfsplus, 1 in jfs, a few in ecryptfs, 1 in jffs2, and a possible cleared data overwritten with readpage in block2mtd. All depending on whether the filler is async and/or can return with a !uptodate page. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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