63  * free it until we unmount the file system in order to make sure re-allocations
120 					    struct root_entry *re)  in insert_root_entry()  argument
129 		if (entry->root_objectid > re->root_objectid)  in insert_root_entry()
131 		else if (entry->root_objectid < re->root_objectid)  in insert_root_entry()
137 	rb_link_node(&re->node, parent_node, p);  in insert_root_entry()
138 	rb_insert_color(&re->node, root);  in insert_root_entry()
237 	struct root_entry *re;  in free_block_entry()  local
243 		re = rb_entry(n, struct root_entry, node);  in free_block_entry()
244 		rb_erase(&re->node, &be->roots);  in free_block_entry()
245 		kfree(re);  in free_block_entry()
268 	struct root_entry *re = NULL;  in add_block_entry()  local
270 	re = kzalloc(sizeof(struct root_entry), GFP_NOFS);  in add_block_entry()
272 	if (!be || !re) {  in add_block_entry()
273 		kfree(re);  in add_block_entry()
280 	re->root_objectid = root_objectid;  in add_block_entry()
281 	re->num_refs = 0;  in add_block_entry()
289 			exist_re = insert_root_entry(&exist->roots, re);  in add_block_entry()
291 				kfree(re);  in add_block_entry()
293 			kfree(re);  in add_block_entry()
306 		insert_root_entry(&be->roots, re);  in add_block_entry()
308 		kfree(re);  in add_block_entry()
316 	struct root_entry *re;  in add_tree_block()  local
343 		re = lookup_root_entry(&be->roots, ref_root);  in add_tree_block()
344 		ASSERT(re);  in add_tree_block()
345 		re->num_refs++;  in add_tree_block()
393 	struct root_entry *re;  in add_extent_data_ref()  local
421 	re = lookup_root_entry(&be->roots, ref_root);  in add_extent_data_ref()
422 	if (!re) {  in add_extent_data_ref()
427 	re->num_refs += num_refs;  in add_extent_data_ref()
635 	struct root_entry *re;  in dump_block_entry()  local
653 		re = rb_entry(n, struct root_entry, node);  in dump_block_entry()
655 			  re->root_objectid, re->num_refs);  in dump_block_entry()
676 	struct root_entry *re = NULL;  in btrfs_ref_tree_mod()  local
756 			"re-allocated a block that still has references to it!");  in btrfs_ref_tree_mod()
776 			re = kmalloc(sizeof(struct root_entry), GFP_NOFS);  in btrfs_ref_tree_mod()
777 			if (!re) {  in btrfs_ref_tree_mod()
786 			 * re->num_refs.  in btrfs_ref_tree_mod()
789 			re->root_objectid = generic_ref->real_root;  in btrfs_ref_tree_mod()
790 			re->num_refs = 0;  in btrfs_ref_tree_mod()
802 			kfree(re);  in btrfs_ref_tree_mod()
812 			kfree(re);  in btrfs_ref_tree_mod()
817 			tmp = insert_root_entry(&be->roots, re);  in btrfs_ref_tree_mod()
819 				kfree(re);  in btrfs_ref_tree_mod()
820 				re = tmp;  in btrfs_ref_tree_mod()
866 	if (!parent && !re) {  in btrfs_ref_tree_mod()
867 		re = lookup_root_entry(&be->roots, ref_root);  in btrfs_ref_tree_mod()
868 		if (!re) {  in btrfs_ref_tree_mod()
870 			 * This shouldn't happen because we will add our re  in btrfs_ref_tree_mod()
884 		if (re)  in btrfs_ref_tree_mod()
885 			re->num_refs--;  in btrfs_ref_tree_mod()
889 		if (re)  in btrfs_ref_tree_mod()
890 			re->num_refs++;  in btrfs_ref_tree_mod()