398 	if (!cache->caching_ctl) {  in btrfs_get_caching_control()
403 	ctl = cache->caching_ctl;  in btrfs_get_caching_control()
431 	struct btrfs_caching_control *caching_ctl;  in btrfs_wait_block_group_cache_progress()  local
433 	caching_ctl = btrfs_get_caching_control(cache);  in btrfs_wait_block_group_cache_progress()
434 	if (!caching_ctl)  in btrfs_wait_block_group_cache_progress()
437 	wait_event(caching_ctl->wait, btrfs_block_group_done(cache) ||  in btrfs_wait_block_group_cache_progress()
440 	btrfs_put_caching_control(caching_ctl);  in btrfs_wait_block_group_cache_progress()
444 				       struct btrfs_caching_control *caching_ctl)  in btrfs_caching_ctl_wait_done()  argument
446 	wait_event(caching_ctl->wait, btrfs_block_group_done(cache));  in btrfs_caching_ctl_wait_done()
452 	struct btrfs_caching_control *caching_ctl;  in btrfs_wait_block_group_cache_done()  local
455 	caching_ctl = btrfs_get_caching_control(cache);  in btrfs_wait_block_group_cache_done()
456 	if (!caching_ctl)  in btrfs_wait_block_group_cache_done()
458 	ret = btrfs_caching_ctl_wait_done(cache, caching_ctl);  in btrfs_wait_block_group_cache_done()
459 	btrfs_put_caching_control(caching_ctl);  in btrfs_wait_block_group_cache_done()
529 static int load_extent_tree_free(struct btrfs_caching_control *caching_ctl)  in load_extent_tree_free()  argument
531 	struct btrfs_block_group *block_group = caching_ctl->block_group;  in load_extent_tree_free()
598 				mutex_unlock(&caching_ctl->mutex);  in load_extent_tree_free()
600 				mutex_lock(&caching_ctl->mutex);  in load_extent_tree_free()
644 					wake_up(&caching_ctl->wait);  in load_extent_tree_free()
663 	struct btrfs_caching_control *caching_ctl;  in caching_thread()  local
666 	caching_ctl = container_of(work, struct btrfs_caching_control, work);  in caching_thread()
667 	block_group = caching_ctl->block_group;  in caching_thread()
670 	mutex_lock(&caching_ctl->mutex);  in caching_thread()
687 		wake_up(&caching_ctl->wait);  in caching_thread()
699 		ret = load_free_space_tree(caching_ctl);  in caching_thread()
701 		ret = load_extent_tree_free(caching_ctl);  in caching_thread()
704 	block_group->caching_ctl = NULL;  in caching_thread()
724 	mutex_unlock(&caching_ctl->mutex);  in caching_thread()
726 	wake_up(&caching_ctl->wait);  in caching_thread()
728 	btrfs_put_caching_control(caching_ctl);  in caching_thread()
735 	struct btrfs_caching_control *caching_ctl = NULL;  in btrfs_cache_block_group()  local
742 	caching_ctl = kzalloc(sizeof(*caching_ctl), GFP_NOFS);  in btrfs_cache_block_group()
743 	if (!caching_ctl)  in btrfs_cache_block_group()
746 	INIT_LIST_HEAD(&caching_ctl->list);  in btrfs_cache_block_group()
747 	mutex_init(&caching_ctl->mutex);  in btrfs_cache_block_group()
748 	init_waitqueue_head(&caching_ctl->wait);  in btrfs_cache_block_group()
749 	caching_ctl->block_group = cache;  in btrfs_cache_block_group()
750 	refcount_set(&caching_ctl->count, 2);  in btrfs_cache_block_group()
751 	btrfs_init_work(&caching_ctl->work, caching_thread, NULL, NULL);  in btrfs_cache_block_group()
755 		kfree(caching_ctl);  in btrfs_cache_block_group()
757 		caching_ctl = cache->caching_ctl;  in btrfs_cache_block_group()
758 		if (caching_ctl)  in btrfs_cache_block_group()
759 			refcount_inc(&caching_ctl->count);  in btrfs_cache_block_group()
763 	WARN_ON(cache->caching_ctl);  in btrfs_cache_block_group()
764 	cache->caching_ctl = caching_ctl;  in btrfs_cache_block_group()
769 	refcount_inc(&caching_ctl->count);  in btrfs_cache_block_group()
770 	list_add_tail(&caching_ctl->list, &fs_info->caching_block_groups);  in btrfs_cache_block_group()
775 	btrfs_queue_work(fs_info->caching_workers, &caching_ctl->work);  in btrfs_cache_block_group()
777 	if (wait && caching_ctl)  in btrfs_cache_block_group()
778 		ret = btrfs_caching_ctl_wait_done(cache, caching_ctl);  in btrfs_cache_block_group()
779 	if (caching_ctl)  in btrfs_cache_block_group()
780 		btrfs_put_caching_control(caching_ctl);  in btrfs_cache_block_group()
874 	struct btrfs_caching_control *caching_ctl = NULL;  in btrfs_remove_block_group()  local
985 	caching_ctl = btrfs_get_caching_control(block_group);  in btrfs_remove_block_group()
986 	if (!caching_ctl) {  in btrfs_remove_block_group()
991 				caching_ctl = ctl;  in btrfs_remove_block_group()
992 				refcount_inc(&caching_ctl->count);  in btrfs_remove_block_group()
997 	if (caching_ctl)  in btrfs_remove_block_group()
998 		list_del_init(&caching_ctl->list);  in btrfs_remove_block_group()
1001 	if (caching_ctl) {  in btrfs_remove_block_group()
1003 		btrfs_put_caching_control(caching_ctl);  in btrfs_remove_block_group()
1004 		btrfs_put_caching_control(caching_ctl);  in btrfs_remove_block_group()
3977 	struct btrfs_caching_control *caching_ctl;  in btrfs_free_block_groups()  local
3982 		caching_ctl = list_entry(info->caching_block_groups.next,  in btrfs_free_block_groups()
3984 		list_del(&caching_ctl->list);  in btrfs_free_block_groups()
3985 		btrfs_put_caching_control(caching_ctl);  in btrfs_free_block_groups()