Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b6e03c10 authored by Darrick J. Wong's avatar Darrick J. Wong
Browse files

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: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarBill O'Donnell <billodo@redhat.com>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
parent 494370cc
Loading
Loading
Loading
Loading
+4 −1
Original line number Original line Diff line number Diff line
@@ -1666,9 +1666,12 @@ xfs_fs_fill_super(
			"DAX unsupported by block device. Turning off DAX.");
			"DAX unsupported by block device. Turning off DAX.");
			mp->m_flags &= ~XFS_MOUNT_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,
			xfs_alert(mp,
		"DAX and reflink cannot be used together!");
		"DAX and reflink cannot be used together!");
			error = -EINVAL;
			goto out_filestream_unmount;
		}
	}
	}


	if (mp->m_flags & XFS_MOUNT_DISCARD) {
	if (mp->m_flags & XFS_MOUNT_DISCARD) {