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| author | Nick Piggin <npiggin@suse.de> | 2007-10-16 01:25:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:42:55 -0700 |
| commit | 637aff46f94a754207c80c8c64bf1b74f24b967d (patch) | |
| tree | 837fb3196236998c3c3ae44762ed3167ef0256f4 /mm/filemap.c | |
| parent | 2f718ffc16c43a435d12919c75dbfad518abd056 (diff) | |
| download | linux-3.10-637aff46f94a754207c80c8c64bf1b74f24b967d.tar.gz linux-3.10-637aff46f94a754207c80c8c64bf1b74f24b967d.tar.bz2 linux-3.10-637aff46f94a754207c80c8c64bf1b74f24b967d.zip | |
fs: fix data-loss on error
New buffers against uptodate pages are simply be marked uptodate, while the
buffer_new bit remains set. This causes error-case code to zero out parts of
those buffers because it thinks they contain stale data: wrong, they are
actually uptodate so this is a data loss situation.
Fix this by actually clearning buffer_new and marking the buffer dirty. It
makes sense to always clear buffer_new before setting a buffer uptodate.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
0 files changed, 0 insertions, 0 deletions