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authorDavid Chinner <dgc@sgi.com>2008-03-06 13:45:50 +1100
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-04-10 16:25:15 +1000
commitee1c090825bf2f1cb9712489c234eabf69a9a78f (patch)
treec261cbeeda46937e6c65994b4348227505665f66 /fs/xfs/xfs_ialloc.c
parent6211870992502efdccf9cd6bae155c83277835fa (diff)
[XFS] Fix superblock features2 field alignment problem
Due to the xfs_dsb_t structure not being 64 bit aligned, the last field of the on-disk superblock can vary in location This causes problems when the filesystem gets moved to a different platform, or there is a 32 bit userspace and 64 bit kernel. This patch detects the defect at mount time, logs a warning such as: XFS: correcting sb_features alignment problem in dmesg and corrects the problem so that everything is OK. it also blacklists the bad field in the superblock so it does not get used for something else later on. SGI-PV: 977636 SGI-Modid: xfs-linux-melb:xfs-kern:30539a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_ialloc.c')
0 files changed, 0 insertions, 0 deletions