From: Jan Kara <jack@suse.cz> maillist inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8MPXP Reference: https://lore.kernel.org/all/20231101174325.10596-6-jack@suse.cz/ ------------------------------------------- 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> Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com> --- 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 f0ae07828153..da47b226c5f1 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; -- 2.31.1