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authorDave Chinner <dchinner@redhat.com>2017-10-09 21:37:22 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2017-10-11 20:21:06 +0300
commit20413e37d71befd02b5846acdaf5e2564dd1c38e (patch)
treee82e3b0d39a6f9322af59f3ed8146f9cd00a6d9e /fs/xfs/xfs_ondisk.h
parente12199f85d0ad1b04ce6c425ad93cd847fe930bb (diff)
downloadlinux-20413e37d71befd02b5846acdaf5e2564dd1c38e.tar.xz
xfs: Don't log uninitialised fields in inode structures
Prevent kmemcheck from throwing warnings about reading uninitialised memory when formatting inodes into the incore log buffer. There are several issues here - we don't always log all the fields in the inode log format item, and we never log the inode the di_next_unlinked field. In the case of the inode log format item, this is exacerbated by the old xfs_inode_log_format structure padding issue. Hence make the padded, 64 bit aligned version of the structure the one we always use for formatting the log and get rid of the 64 bit variant. This means we'll always log the 64-bit version and so recovery only needs to convert from the unpadded 32 bit version from older 32 bit kernels. Signed-Off-By: Dave Chinner <dchinner@redhat.com> Tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_ondisk.h')
-rw-r--r--fs/xfs/xfs_ondisk.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_ondisk.h b/fs/xfs/xfs_ondisk.h
index 0c381d71b242..0492436a053f 100644
--- a/fs/xfs/xfs_ondisk.h
+++ b/fs/xfs/xfs_ondisk.h
@@ -134,7 +134,7 @@ xfs_check_ondisk_structs(void)
XFS_CHECK_STRUCT_SIZE(struct xfs_icreate_log, 28);
XFS_CHECK_STRUCT_SIZE(struct xfs_ictimestamp, 8);
XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_32, 52);
- XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_64, 56);
+ XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format, 56);
XFS_CHECK_STRUCT_SIZE(struct xfs_qoff_logformat, 20);
XFS_CHECK_STRUCT_SIZE(struct xfs_trans_header, 16);
}