xfs: don't allow DAX on reflink filesystems
authorDarrick J. Wong <darrick.wong@oracle.com>
Wed, 31 Jan 2018 22:21:56 +0000 (14:21 -0800)
committerDarrick J. Wong <darrick.wong@oracle.com>
Fri, 2 Feb 2018 05:06:15 +0000 (21:06 -0800)
commitb6e03c10bf3ff08c7678a946a2208b60e66f4426
tree176f2d7261ffbf6848f745133db1efbdd89cf9dc
parent494370ccaae891de0a99b3c23b2df482c95cab8c
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>
fs/xfs/xfs_super.c