diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2018-04-18 05:10:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-08 15:05:15 +0300 |
| commit | 4ec44e98ab08c704d0ff1a35a21a0682a5562a27 (patch) | |
| tree | f25c4951037b6153666578cb13dcd46edf372b54 /fs/xfs | |
| parent | 91fe514bedf4c72ae8046fe4cfa98c5e201f6b84 (diff) | |
| download | linux-4ec44e98ab08c704d0ff1a35a21a0682a5562a27.tar.xz | |
xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE
commit 7b38460dc8e4eafba06c78f8e37099d3b34d473c upstream.
Kanda Motohiro reported that expanding a tiny xattr into a large xattr
fails on XFS because we remove the tiny xattr from a shortform fork and
then try to re-add it after converting the fork to extents format having
not removed the ATTR_REPLACE flag. This fails because the attr is no
longer present, causing a fs shutdown.
This is derived from the patch in his bug report, but we really
shouldn't ignore a nonzero retval from the remove call.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199119
Reported-by: kanda.motohiro@gmail.com
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_attr.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 6622d46ddec3..9687208c676f 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -487,7 +487,14 @@ xfs_attr_shortform_addname(xfs_da_args_t *args) if (args->flags & ATTR_CREATE) return retval; retval = xfs_attr_shortform_remove(args); - ASSERT(retval == 0); + if (retval) + return retval; + /* + * Since we have removed the old attr, clear ATTR_REPLACE so + * that the leaf format add routine won't trip over the attr + * not being around. + */ + args->flags &= ~ATTR_REPLACE; } if (args->namelen >= XFS_ATTR_SF_ENTSIZE_MAX || |