197 	struct ocfs2_refcount_tree *tree = NULL;  in ocfs2_find_refcount_tree()  local
200 		tree = rb_entry(n, struct ocfs2_refcount_tree, rf_node);  in ocfs2_find_refcount_tree()
202 		if (blkno < tree->rf_blkno)  in ocfs2_find_refcount_tree()
204 		else if (blkno > tree->rf_blkno)  in ocfs2_find_refcount_tree()
207 			return tree;  in ocfs2_find_refcount_tree()
244 static void ocfs2_free_refcount_tree(struct ocfs2_refcount_tree *tree)  in ocfs2_free_refcount_tree()  argument
246 	ocfs2_metadata_cache_exit(&tree->rf_ci);  in ocfs2_free_refcount_tree()
247 	ocfs2_simple_drop_lockres(OCFS2_SB(tree->rf_sb), &tree->rf_lockres);  in ocfs2_free_refcount_tree()
248 	ocfs2_lock_res_free(&tree->rf_lockres);  in ocfs2_free_refcount_tree()
249 	kfree(tree);  in ocfs2_free_refcount_tree()
254 					struct ocfs2_refcount_tree *tree)  in ocfs2_erase_refcount_tree_from_list_no_lock()  argument
256 	rb_erase(&tree->rf_node, &osb->osb_rf_lock_tree);  in ocfs2_erase_refcount_tree_from_list_no_lock()
257 	if (osb->osb_ref_tree_lru && osb->osb_ref_tree_lru == tree)  in ocfs2_erase_refcount_tree_from_list_no_lock()
262 					struct ocfs2_refcount_tree *tree)  in ocfs2_erase_refcount_tree_from_list()  argument
265 	ocfs2_erase_refcount_tree_from_list_no_lock(osb, tree);  in ocfs2_erase_refcount_tree_from_list()
271 	struct ocfs2_refcount_tree *tree =  in ocfs2_kref_remove_refcount_tree()  local
274 	ocfs2_free_refcount_tree(tree);  in ocfs2_kref_remove_refcount_tree()
278 ocfs2_refcount_tree_get(struct ocfs2_refcount_tree *tree)  in ocfs2_refcount_tree_get()  argument
280 	kref_get(&tree->rf_getcnt);  in ocfs2_refcount_tree_get()
284 ocfs2_refcount_tree_put(struct ocfs2_refcount_tree *tree)  in ocfs2_refcount_tree_put()  argument
286 	kref_put(&tree->rf_getcnt, ocfs2_kref_remove_refcount_tree);  in ocfs2_refcount_tree_put()
327 	struct ocfs2_refcount_tree *tree, *new = NULL;  in ocfs2_get_refcount_tree()  local
334 		tree = osb->osb_ref_tree_lru;  in ocfs2_get_refcount_tree()
336 		tree = ocfs2_find_refcount_tree(osb, rf_blkno);  in ocfs2_get_refcount_tree()
337 	if (tree)  in ocfs2_get_refcount_tree()
371 	tree = ocfs2_find_refcount_tree(osb, rf_blkno);  in ocfs2_get_refcount_tree()
372 	if (tree)  in ocfs2_get_refcount_tree()
377 	tree = new;  in ocfs2_get_refcount_tree()
381 	*ret_tree = tree;  in ocfs2_get_refcount_tree()
383 	osb->osb_ref_tree_lru = tree;  in ocfs2_get_refcount_tree()
416 				      struct ocfs2_refcount_tree *tree, int rw)  in __ocfs2_lock_refcount_tree()  argument
420 	ret = ocfs2_refcount_lock(tree, rw);  in __ocfs2_lock_refcount_tree()
427 		down_write(&tree->rf_sem);  in __ocfs2_lock_refcount_tree()
429 		down_read(&tree->rf_sem);  in __ocfs2_lock_refcount_tree()
449 	struct ocfs2_refcount_tree *tree = NULL;  in ocfs2_lock_refcount_tree()  local
454 	ret = ocfs2_get_refcount_tree(osb, ref_blkno, &tree);  in ocfs2_lock_refcount_tree()
460 	ocfs2_refcount_tree_get(tree);  in ocfs2_lock_refcount_tree()
462 	ret = __ocfs2_lock_refcount_tree(osb, tree, rw);  in ocfs2_lock_refcount_tree()
465 		ocfs2_refcount_tree_put(tree);  in ocfs2_lock_refcount_tree()
469 	ret = ocfs2_read_refcount_block(&tree->rf_ci, tree->rf_blkno,  in ocfs2_lock_refcount_tree()
473 		ocfs2_unlock_refcount_tree(osb, tree, rw);  in ocfs2_lock_refcount_tree()
487 	if (tree->rf_generation != le32_to_cpu(rb->rf_generation)) {  in ocfs2_lock_refcount_tree()
488 		if (!tree->rf_removed) {  in ocfs2_lock_refcount_tree()
489 			ocfs2_erase_refcount_tree_from_list(osb, tree);  in ocfs2_lock_refcount_tree()
490 			tree->rf_removed = 1;  in ocfs2_lock_refcount_tree()
494 		ocfs2_unlock_refcount_tree(osb, tree, rw);  in ocfs2_lock_refcount_tree()
500 			ocfs2_refcount_tree_put(tree);  in ocfs2_lock_refcount_tree()
506 	*ret_tree = tree;  in ocfs2_lock_refcount_tree()
517 				struct ocfs2_refcount_tree *tree, int rw)  in ocfs2_unlock_refcount_tree()  argument
520 		up_write(&tree->rf_sem);  in ocfs2_unlock_refcount_tree()
522 		up_read(&tree->rf_sem);  in ocfs2_unlock_refcount_tree()
524 	ocfs2_refcount_unlock(tree, rw);  in ocfs2_unlock_refcount_tree()
525 	ocfs2_refcount_tree_put(tree);  in ocfs2_unlock_refcount_tree()
531 	struct ocfs2_refcount_tree *tree;  in ocfs2_purge_refcount_trees()  local
535 		tree = rb_entry(node, struct ocfs2_refcount_tree, rf_node);  in ocfs2_purge_refcount_trees()
538 				(unsigned long long) tree->rf_blkno);  in ocfs2_purge_refcount_trees()
540 		rb_erase(&tree->rf_node, root);  in ocfs2_purge_refcount_trees()
541 		ocfs2_free_refcount_tree(tree);  in ocfs2_purge_refcount_trees()
560 	struct ocfs2_refcount_tree *new_tree = NULL, *tree = NULL;  in ocfs2_create_refcount_tree()  local
657 	tree = ocfs2_find_refcount_tree(osb, first_blkno);  in ocfs2_create_refcount_tree()
665 	BUG_ON(tree && tree->rf_generation == new_tree->rf_generation);  in ocfs2_create_refcount_tree()
666 	if (tree)  in ocfs2_create_refcount_tree()
667 		ocfs2_erase_refcount_tree_from_list_no_lock(osb, tree);  in ocfs2_create_refcount_tree()
671 	if (tree)  in ocfs2_create_refcount_tree()
672 		ocfs2_refcount_tree_put(tree);  in ocfs2_create_refcount_tree()
2295 	struct ocfs2_refcount_tree *tree;  in ocfs2_decrease_refcount()  local
2305 	ret = ocfs2_get_refcount_tree(OCFS2_SB(inode->i_sb), ref_blkno, &tree);  in ocfs2_decrease_refcount()
2311 	ret = ocfs2_read_refcount_block(&tree->rf_ci, tree->rf_blkno,  in ocfs2_decrease_refcount()
2318 	ret = __ocfs2_decrease_refcount(handle, &tree->rf_ci, ref_root_bh,  in ocfs2_decrease_refcount()
2528 	struct ocfs2_refcount_tree *tree;  in ocfs2_prepare_refcount_change_for_del()  local
2540 				      refcount_loc, &tree);  in ocfs2_prepare_refcount_change_for_del()
2546 	ret = ocfs2_read_refcount_block(&tree->rf_ci, refcount_loc,  in ocfs2_prepare_refcount_change_for_del()
2554 					       &tree->rf_ci,  in ocfs2_prepare_refcount_change_for_del()