diff options
| -rw-r--r-- | fs/btrfs/super.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 1f62c1ccab1..02f552f1182 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1330,6 +1330,12 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) * this also happens on 'umount -rf' or on shutdown, when * the filesystem is busy. */ + + /* wait for the uuid_scan task to finish */ + down(&fs_info->uuid_tree_rescan_sem); + /* avoid complains from lockdep et al. */ + up(&fs_info->uuid_tree_rescan_sem); + sb->s_flags |= MS_RDONLY; btrfs_dev_replace_suspend_for_unmount(fs_info); |