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xfs: actually report xattr extents via iomap 

commit 84358536dc upstream.

Apparently FIEMAP for xattrs has been broken since we switched to
the iomap backend because of an incorrect check for xattr presence.
Also fix the broken locking.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
steinar/wifi_calib_4_9_kernel
Darrick J. Wong 2017-04-06 16:00:39 -07:00 committed by Greg Kroah-Hartman
parent de417ea6b0
commit 4e8163fc81
1 changed files with 2 additions and 2 deletions
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4
fs/xfs/xfs_iomap.c
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@ -1151,10 +1151,10 @@ xfs_xattr_iomap_begin(
if (XFS_FORCED_SHUTDOWN(mp))
return -EIO;
lockmode = xfs_ilock_data_map_shared(ip);
lockmode = xfs_ilock_attr_map_shared(ip);
/* if there are no attribute fork or extents, return ENOENT */
if (XFS_IFORK_Q(ip) || !ip->i_d.di_anextents) {
if (!XFS_IFORK_Q(ip) || !ip->i_d.di_anextents) {
error = -ENOENT;
goto out_unlock;
}