This is very rare but also obvious enough I think it's worth fixing up. From: Duane Griffin <duaneg> Date: Thu, 20 Mar 2008 00:00:53 +0000 (-0700) Subject: jbd: correctly unescape journal data blocks X-Git-Tag: v2.6.25-rc7~82 X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=439aeec639d7c57f3561054a6d315c40fd24bb74 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> Acked-by: Jan Kara <jack> Cc: <linux-ext4.org> Cc: <stable> Signed-off-by: Andrew Morton <akpm> Signed-off-by: Linus Torvalds <torvalds>
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
oops, Josef already sent this! *** This bug has been marked as a duplicate of 447742 ***