365 	if (!cache->caching_ctl) {  in btrfs_get_caching_control()
370 	ctl = cache->caching_ctl;  in btrfs_get_caching_control()
398 	struct btrfs_caching_control *caching_ctl;  in btrfs_wait_block_group_cache_progress()  local
400 	caching_ctl = btrfs_get_caching_control(cache);  in btrfs_wait_block_group_cache_progress()
401 	if (!caching_ctl)  in btrfs_wait_block_group_cache_progress()
404 	wait_event(caching_ctl->wait, btrfs_block_group_cache_done(cache) ||  in btrfs_wait_block_group_cache_progress()
407 	btrfs_put_caching_control(caching_ctl);  in btrfs_wait_block_group_cache_progress()
412 	struct btrfs_caching_control *caching_ctl;  in btrfs_wait_block_group_cache_done()  local
415 	caching_ctl = btrfs_get_caching_control(cache);  in btrfs_wait_block_group_cache_done()
416 	if (!caching_ctl)  in btrfs_wait_block_group_cache_done()
419 	wait_event(caching_ctl->wait, btrfs_block_group_cache_done(cache));  in btrfs_wait_block_group_cache_done()
422 	btrfs_put_caching_control(caching_ctl);  in btrfs_wait_block_group_cache_done()
492 static int load_extent_tree_free(struct btrfs_caching_control *caching_ctl)  in load_extent_tree_free()  argument
494 	struct btrfs_block_group_cache *block_group = caching_ctl->block_group;  in load_extent_tree_free()
559 					caching_ctl->progress = last;  in load_extent_tree_free()
562 				mutex_unlock(&caching_ctl->mutex);  in load_extent_tree_free()
564 				mutex_lock(&caching_ctl->mutex);  in load_extent_tree_free()
585 				caching_ctl->progress = last;  in load_extent_tree_free()
612 					wake_up(&caching_ctl->wait);  in load_extent_tree_free()
622 	caching_ctl->progress = (u64)-1;  in load_extent_tree_free()
633 	struct btrfs_caching_control *caching_ctl;  in caching_thread()  local
636 	caching_ctl = container_of(work, struct btrfs_caching_control, work);  in caching_thread()
637 	block_group = caching_ctl->block_group;  in caching_thread()
640 	mutex_lock(&caching_ctl->mutex);  in caching_thread()
644 		ret = load_free_space_tree(caching_ctl);  in caching_thread()
646 		ret = load_extent_tree_free(caching_ctl);  in caching_thread()
649 	block_group->caching_ctl = NULL;  in caching_thread()
668 	caching_ctl->progress = (u64)-1;  in caching_thread()
672 	mutex_unlock(&caching_ctl->mutex);  in caching_thread()
674 	wake_up(&caching_ctl->wait);  in caching_thread()
676 	btrfs_put_caching_control(caching_ctl);  in caching_thread()
685 	struct btrfs_caching_control *caching_ctl;  in btrfs_cache_block_group()  local
688 	caching_ctl = kzalloc(sizeof(*caching_ctl), GFP_NOFS);  in btrfs_cache_block_group()
689 	if (!caching_ctl)  in btrfs_cache_block_group()
692 	INIT_LIST_HEAD(&caching_ctl->list);  in btrfs_cache_block_group()
693 	mutex_init(&caching_ctl->mutex);  in btrfs_cache_block_group()
694 	init_waitqueue_head(&caching_ctl->wait);  in btrfs_cache_block_group()
695 	caching_ctl->block_group = cache;  in btrfs_cache_block_group()
696 	caching_ctl->progress = cache->key.objectid;  in btrfs_cache_block_group()
697 	refcount_set(&caching_ctl->count, 1);  in btrfs_cache_block_group()
698 	btrfs_init_work(&caching_ctl->work, btrfs_cache_helper,  in btrfs_cache_block_group()
717 		ctl = cache->caching_ctl;  in btrfs_cache_block_group()
731 		kfree(caching_ctl);  in btrfs_cache_block_group()
734 	WARN_ON(cache->caching_ctl);  in btrfs_cache_block_group()
735 	cache->caching_ctl = caching_ctl;  in btrfs_cache_block_group()
740 		mutex_lock(&caching_ctl->mutex);  in btrfs_cache_block_group()
745 			cache->caching_ctl = NULL;  in btrfs_cache_block_group()
748 			caching_ctl->progress = (u64)-1;  in btrfs_cache_block_group()
751 				cache->caching_ctl = NULL;  in btrfs_cache_block_group()
774 		mutex_unlock(&caching_ctl->mutex);  in btrfs_cache_block_group()
776 		wake_up(&caching_ctl->wait);  in btrfs_cache_block_group()
778 			btrfs_put_caching_control(caching_ctl);  in btrfs_cache_block_group()
789 			cache->caching_ctl = NULL;  in btrfs_cache_block_group()
796 		wake_up(&caching_ctl->wait);  in btrfs_cache_block_group()
800 		btrfs_put_caching_control(caching_ctl);  in btrfs_cache_block_group()
805 	refcount_inc(&caching_ctl->count);  in btrfs_cache_block_group()
806 	list_add_tail(&caching_ctl->list, &fs_info->caching_block_groups);  in btrfs_cache_block_group()
811 	btrfs_queue_work(fs_info->caching_workers, &caching_ctl->work);  in btrfs_cache_block_group()
875 	struct btrfs_caching_control *caching_ctl = NULL;  in btrfs_remove_block_group()  local
1013 		caching_ctl = btrfs_get_caching_control(block_group);  in btrfs_remove_block_group()
1018 		if (!caching_ctl) {  in btrfs_remove_block_group()
1024 					caching_ctl = ctl;  in btrfs_remove_block_group()
1025 					refcount_inc(&caching_ctl->count);  in btrfs_remove_block_group()
1029 		if (caching_ctl)  in btrfs_remove_block_group()
1030 			list_del_init(&caching_ctl->list);  in btrfs_remove_block_group()
1032 		if (caching_ctl) {  in btrfs_remove_block_group()
1034 			btrfs_put_caching_control(caching_ctl);  in btrfs_remove_block_group()
1035 			btrfs_put_caching_control(caching_ctl);  in btrfs_remove_block_group()
3092 	struct btrfs_caching_control *caching_ctl;  in btrfs_free_block_groups()  local
3097 		caching_ctl = list_entry(info->caching_block_groups.next,  in btrfs_free_block_groups()
3099 		list_del(&caching_ctl->list);  in btrfs_free_block_groups()
3100 		btrfs_put_caching_control(caching_ctl);  in btrfs_free_block_groups()