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authorDuane Griffin <duaneg@dghda.com>2008-03-19 17:00:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-03-19 18:53:36 -0700
commit439aeec639d7c57f3561054a6d315c40fd24bb74 (patch)
tree92ccf27e7fe0ae99dfc8e3bcd0ef4fe7d1e0795a /fs/jbd2/recovery.c
parent44e0451db0a9c0bceabaa9cc77cbcc717a094fcc (diff)
jbd: correctly unescape journal data blocks
Fix a long-standing typo (predating git) that will cause data corruption if a journal data block needs unescaping. At the moment the wrong buffer head's data is being unescaped. To test this case mount a filesystem with data=journal, start creating and deleting a bunch of files containing only JFS_MAGIC_NUMBER (0xc03b3998), then pull the plug on the device. Without this patch the files will contain zeros instead of the correct data after recovery. Signed-off-by: Duane Griffin <duaneg@dghda.com> Acked-by: Jan Kara <jack@suse.cz> Cc: <linux-ext4@vger.kernel.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/jbd2/recovery.c')
0 files changed, 0 insertions, 0 deletions