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author | Nick Piggin <npiggin@suse.de> | 2007-05-07 01:49:04 +0400 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 23:12:51 +0400 |
commit | 6fe6900e1e5b6fa9e5c59aa5061f244fe3f467e2 (patch) | |
tree | 8bbfe5072279227cc50a941ad4813908082426a1 /kernel/rtmutex-debug.h | |
parent | 714b8171af9c930a59a0da8f6fe50518e70ab035 (diff) | |
download | linux-6fe6900e1e5b6fa9e5c59aa5061f244fe3f467e2.tar.xz |
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>
Diffstat (limited to 'kernel/rtmutex-debug.h')
0 files changed, 0 insertions, 0 deletions