diff mbox series

[6/7] xfs: Block writes to log device

Message ID 20231101174325.10596-6-jack@suse.cz (mailing list archive)
State Deferred, archived
Headers show
Series block: Add config option to not allow writing to mounted devices | expand

Commit Message

Jan Kara Nov. 1, 2023, 5:43 p.m. UTC 
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@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/xfs/xfs_super.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

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;