diff options
| author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2022-06-09 16:34:35 +0200 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-30 03:07:17 +0200 |
| commit | 35fcd75af3edf035638e632bb49607cc8fc3cdf4 (patch) | |
| tree | 0fd3a9947f6ac494957885eaa4fd63f1cc898061 /fs/xfs | |
| parent | mm/memcontrol.c: remove the redundant updating of stats_flush_threshold (diff) | |
| download | linux-35fcd75af3edf035638e632bb49607cc8fc3cdf4.tar.xz linux-35fcd75af3edf035638e632bb49607cc8fc3cdf4.zip | |
xfs: fail dax mount if reflink is enabled on a partition
Failure notification is not supported on partitions. So, when we mount a
reflink enabled xfs on a partition with dax option, let it fail with
-EINVAL code.
Link: https://lkml.kernel.org/r/20220609143435.393724-1-ruansy.fnst@fujitsu.com
Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_super.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index ed18160e6181..c440e90fecef 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -350,8 +350,10 @@ xfs_setup_dax_always( goto disable_dax; } - if (xfs_has_reflink(mp)) { - xfs_alert(mp, "DAX and reflink cannot be used together!"); + if (xfs_has_reflink(mp) && + bdev_is_partition(mp->m_ddev_targp->bt_bdev)) { + xfs_alert(mp, + "DAX and reflink cannot work with multi-partitions!"); return -EINVAL; } |