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authorJan Kara <jack@suse.cz>2023-11-01 20:43:11 +0300
committerChristian Brauner <brauner@kernel.org>2023-11-18 16:59:25 +0300
commit3584c8f48a70c1f74c7b7bab59cf22bb66224649 (patch)
tree2e40c77441b427e330a056f93f3d719b2e12d96b
parent6f861765464f43a71462d52026fbddfc858239a5 (diff)
downloadlinux-3584c8f48a70c1f74c7b7bab59cf22bb66224649.tar.xz
xfs: Block writes to log device
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> Link: https://lore.kernel.org/r/20231101174325.10596-6-jack@suse.cz Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Christian Brauner <brauner@kernel.org>
-rw-r--r--fs/xfs/xfs_super.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 86e94654a92b..07857d967ee8 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -366,8 +366,9 @@ 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;