From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
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@xxxxxxxxxx>
---
fs/xfs/xfs_super.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index f436eec..fd34cf2 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) {
--
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