diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2018-02-01 01:21:56 +0300 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-02-02 08:06:15 +0300 |
| commit | b6e03c10bf3ff08c7678a946a2208b60e66f4426 (patch) | |
| tree | 176f2d7261ffbf6848f745133db1efbdd89cf9dc /fs/xfs | |
| parent | 494370ccaae891de0a99b3c23b2df482c95cab8c (diff) | |
| download | linux-b6e03c10bf3ff08c7678a946a2208b60e66f4426.tar.xz | |
xfs: don't allow DAX on reflink filesystems
Now that reflink is no longer experimental, reject attempts to mount
with DAX until that whole mess gets sorted out.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_super.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index f3e0001f9992..0505605e25c1 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1666,9 +1666,12 @@ xfs_fs_fill_super( "DAX unsupported by block device. Turning off DAX."); mp->m_flags &= ~XFS_MOUNT_DAX; } - if (xfs_sb_version_hasreflink(&mp->m_sb)) + if (xfs_sb_version_hasreflink(&mp->m_sb)) { xfs_alert(mp, "DAX and reflink cannot be used together!"); + error = -EINVAL; + goto out_filestream_unmount; + } } if (mp->m_flags & XFS_MOUNT_DISCARD) { |