1 files changed, 12 insertions, 0 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index fe5aec9b3924..e48e8095c61f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1773,6 +1773,17 @@ struct btrfs_root *open_ctree(struct super_block *sb,
         INIT_LIST_HEAD(&fs_info->ordered_extents);
         spin_lock_init(&fs_info->ordered_extent_lock);
 
+        mutex_init(&fs_info->scrub_lock);
+        atomic_set(&fs_info->scrubs_running, 0);
+        atomic_set(&fs_info->scrub_pause_req, 0);
+        atomic_set(&fs_info->scrubs_paused, 0);
+        atomic_set(&fs_info->scrub_cancel_req, 0);
+        init_waitqueue_head(&fs_info->scrub_pause_wait);
+        init_rwsem(&fs_info->scrub_super_lock);
+        fs_info->scrub_workers_refcnt = 0;
+        btrfs_init_workers(&fs_info->scrub_workers, "scrub",
+                           fs_info->thread_pool_size, &fs_info->generic_worker);
+
         sb->s_blocksize = 4096;
         sb->s_blocksize_bits = blksize_bits(4096);
         sb->s_bdi = &fs_info->bdi;
@@ -2599,6 +2610,7 @@ int close_ctree(struct btrfs_root *root)
         fs_info->closing = 1;
         smp_mb();
 
+        btrfs_scrub_cancel(root);
         btrfs_put_block_group_cache(fs_info);
 
         /*