Ask block layer to not allow other writers to open block devices used
for xfs log and realtime devices.
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Jan Kara <jack@xxxxxxx>
---
fs/xfs/xfs_super.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 84107d162e41..2f29a6810e6a 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -365,8 +365,9 @@ xfs_blkdev_get(
{
int error = 0;
- *handlep = bdev_open_by_path(name, BLK_OPEN_READ | BLK_OPEN_WRITE,
- mp->m_super, &fs_holder_ops);
+ *handlep = bdev_open_by_path(name,
+ BLK_OPEN_READ | BLK_OPEN_WRITE | BLK_OPEN_RESTRICT_WRITES,
+ mp->m_super, &fs_holder_ops);
if (IS_ERR(*handlep)) {
error = PTR_ERR(*handlep);
*handlep = NULL;
--
2.35.3
