63  * free it until we unmount the file system in order to make sure re-allocations
136 					    struct root_entry *re)  in insert_root_entry()  argument
140 	node = rb_find_add(&re->node, root, root_entry_root_objectid_cmp);  in insert_root_entry()
219 	struct root_entry *re;  in free_block_entry()  local
225 		re = rb_entry(n, struct root_entry, node);  in free_block_entry()
226 		rb_erase(&re->node, &be->roots);  in free_block_entry()
227 		kfree(re);  in free_block_entry()
250 	struct root_entry *re = NULL;  in add_block_entry()  local
252 	re = kzalloc(sizeof(struct root_entry), GFP_NOFS);  in add_block_entry()
254 	if (!be || !re) {  in add_block_entry()
255 		kfree(re);  in add_block_entry()
262 	re->root_objectid = root_objectid;  in add_block_entry()
263 	re->num_refs = 0;  in add_block_entry()
271 			exist_re = insert_root_entry(&exist->roots, re);  in add_block_entry()
273 				kfree(re);  in add_block_entry()
275 			kfree(re);  in add_block_entry()
288 		insert_root_entry(&be->roots, re);  in add_block_entry()
290 		kfree(re);  in add_block_entry()
298 	struct root_entry *re;  in add_tree_block()  local
325 		re = lookup_root_entry(&be->roots, ref_root);  in add_tree_block()
326 		ASSERT(re);  in add_tree_block()
327 		re->num_refs++;  in add_tree_block()
375 	struct root_entry *re;  in add_extent_data_ref()  local
403 	re = lookup_root_entry(&be->roots, ref_root);  in add_extent_data_ref()
404 	if (!re) {  in add_extent_data_ref()
409 	re->num_refs += num_refs;  in add_extent_data_ref()
617 	struct root_entry *re;  in dump_block_entry()  local
635 		re = rb_entry(n, struct root_entry, node);  in dump_block_entry()
637 			  re->root_objectid, re->num_refs);  in dump_block_entry()
658 	struct root_entry *re = NULL;  in btrfs_ref_tree_mod()  local
738 			"re-allocated a block that still has references to it!");  in btrfs_ref_tree_mod()
758 			re = kmalloc(sizeof(struct root_entry), GFP_NOFS);  in btrfs_ref_tree_mod()
759 			if (!re) {  in btrfs_ref_tree_mod()
768 			 * re->num_refs.  in btrfs_ref_tree_mod()
771 			re->root_objectid = generic_ref->real_root;  in btrfs_ref_tree_mod()
772 			re->num_refs = 0;  in btrfs_ref_tree_mod()
784 			kfree(re);  in btrfs_ref_tree_mod()
794 			kfree(re);  in btrfs_ref_tree_mod()
799 			tmp = insert_root_entry(&be->roots, re);  in btrfs_ref_tree_mod()
801 				kfree(re);  in btrfs_ref_tree_mod()
802 				re = tmp;  in btrfs_ref_tree_mod()
849 	if (!parent && !re) {  in btrfs_ref_tree_mod()
850 		re = lookup_root_entry(&be->roots, ref_root);  in btrfs_ref_tree_mod()
851 		if (!re) {  in btrfs_ref_tree_mod()
853 			 * This shouldn't happen because we will add our re  in btrfs_ref_tree_mod()
867 		if (re)  in btrfs_ref_tree_mod()
868 			re->num_refs--;  in btrfs_ref_tree_mod()
872 		if (re)  in btrfs_ref_tree_mod()
873 			re->num_refs++;  in btrfs_ref_tree_mod()