[PATCH 3/6] xfs: Block writes to log device

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Ask block layer to not allow other writers to open block device used
for xfs log.

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 b0fbf8ea7846..3808b4507552 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -396,8 +396,9 @@ xfs_blkdev_get(
 {
 	int			error = 0;
 
-	*handlep = blkdev_get_by_path(name, BLK_OPEN_READ | BLK_OPEN_WRITE,
-				      mp, &xfs_holder_ops);
+	*handlep = blkdev_get_by_path(name,
+			BLK_OPEN_READ | BLK_OPEN_WRITE | BLK_OPEN_BLOCK_WRITES,
+			mp, &xfs_holder_ops);
 	if (IS_ERR(*handlep)) {
 		error = PTR_ERR(*handlep);
 		xfs_warn(mp, "Invalid device [%s], error=%d", name, error);
-- 
2.35.3




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