551 	struct btrfs_free_space_entry *e;  in io_ctl_read_entry()  local
560 	e = io_ctl->cur;  in io_ctl_read_entry()
561 	entry->offset = le64_to_cpu(e->offset);  in io_ctl_read_entry()
562 	entry->bytes = le64_to_cpu(e->bytes);  in io_ctl_read_entry()
563 	*type = e->type;  in io_ctl_read_entry()
601 	struct btrfs_free_space *e, *prev = NULL;  in merge_space_tree()  local
607 		e = rb_entry(n, struct btrfs_free_space, offset_index);  in merge_space_tree()
610 		if (e->bitmap || prev->bitmap)  in merge_space_tree()
612 		if (prev->offset + prev->bytes == e->offset) {  in merge_space_tree()
614 			unlink_free_space(ctl, e);  in merge_space_tree()
615 			prev->bytes += e->bytes;  in merge_space_tree()
616 			kmem_cache_free(btrfs_free_space_cachep, e);  in merge_space_tree()
623 		prev = e;  in merge_space_tree()
636 	struct btrfs_free_space *e, *n;  in __load_free_space_cache()  local
705 		e = kmem_cache_zalloc(btrfs_free_space_cachep,  in __load_free_space_cache()
707 		if (!e)  in __load_free_space_cache()
710 		ret = io_ctl_read_entry(&io_ctl, e, &type);  in __load_free_space_cache()
712 			kmem_cache_free(btrfs_free_space_cachep, e);  in __load_free_space_cache()
716 		if (!e->bytes) {  in __load_free_space_cache()
717 			kmem_cache_free(btrfs_free_space_cachep, e);  in __load_free_space_cache()
723 			ret = link_free_space(ctl, e);  in __load_free_space_cache()
728 				kmem_cache_free(btrfs_free_space_cachep, e);  in __load_free_space_cache()
734 			e->bitmap = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);  in __load_free_space_cache()
735 			if (!e->bitmap) {  in __load_free_space_cache()
737 					btrfs_free_space_cachep, e);  in __load_free_space_cache()
741 			ret = link_free_space(ctl, e);  in __load_free_space_cache()
748 				kmem_cache_free(btrfs_free_space_cachep, e);  in __load_free_space_cache()
751 			list_add_tail(&e->list, &bitmaps);  in __load_free_space_cache()
763 	list_for_each_entry_safe(e, n, &bitmaps, list) {  in __load_free_space_cache()
764 		list_del_init(&e->list);  in __load_free_space_cache()
765 		ret = io_ctl_read_bitmap(&io_ctl, e);  in __load_free_space_cache()
929 		struct btrfs_free_space *e;  in __btrfs_write_out_cache()  local
931 		e = rb_entry(node, struct btrfs_free_space, offset_index);  in __btrfs_write_out_cache()
934 		ret = io_ctl_add_entry(&io_ctl, e->offset, e->bytes,  in __btrfs_write_out_cache()
935 				       e->bitmap);  in __btrfs_write_out_cache()
939 		if (e->bitmap) {  in __btrfs_write_out_cache()
940 			list_add_tail(&e->list, &bitmap_list);  in __btrfs_write_out_cache()