206 	struct ocfs2_refcount_tree *tree = NULL;  in ocfs2_find_refcount_tree()  local
209 		tree = rb_entry(n, struct ocfs2_refcount_tree, rf_node);  in ocfs2_find_refcount_tree()
211 		if (blkno < tree->rf_blkno)  in ocfs2_find_refcount_tree()
213 		else if (blkno > tree->rf_blkno)  in ocfs2_find_refcount_tree()
216 			return tree;  in ocfs2_find_refcount_tree()
253 static void ocfs2_free_refcount_tree(struct ocfs2_refcount_tree *tree)  in ocfs2_free_refcount_tree()  argument
255 	ocfs2_metadata_cache_exit(&tree->rf_ci);  in ocfs2_free_refcount_tree()
256 	ocfs2_simple_drop_lockres(OCFS2_SB(tree->rf_sb), &tree->rf_lockres);  in ocfs2_free_refcount_tree()
257 	ocfs2_lock_res_free(&tree->rf_lockres);  in ocfs2_free_refcount_tree()
258 	kfree(tree);  in ocfs2_free_refcount_tree()
263 					struct ocfs2_refcount_tree *tree)  in ocfs2_erase_refcount_tree_from_list_no_lock()  argument
265 	rb_erase(&tree->rf_node, &osb->osb_rf_lock_tree);  in ocfs2_erase_refcount_tree_from_list_no_lock()
266 	if (osb->osb_ref_tree_lru && osb->osb_ref_tree_lru == tree)  in ocfs2_erase_refcount_tree_from_list_no_lock()
271 					struct ocfs2_refcount_tree *tree)  in ocfs2_erase_refcount_tree_from_list()  argument
274 	ocfs2_erase_refcount_tree_from_list_no_lock(osb, tree);  in ocfs2_erase_refcount_tree_from_list()
280 	struct ocfs2_refcount_tree *tree =  in ocfs2_kref_remove_refcount_tree()  local
283 	ocfs2_free_refcount_tree(tree);  in ocfs2_kref_remove_refcount_tree()
287 ocfs2_refcount_tree_get(struct ocfs2_refcount_tree *tree)  in ocfs2_refcount_tree_get()  argument
289 	kref_get(&tree->rf_getcnt);  in ocfs2_refcount_tree_get()
293 ocfs2_refcount_tree_put(struct ocfs2_refcount_tree *tree)  in ocfs2_refcount_tree_put()  argument
295 	kref_put(&tree->rf_getcnt, ocfs2_kref_remove_refcount_tree);  in ocfs2_refcount_tree_put()
336 	struct ocfs2_refcount_tree *tree, *new = NULL;  in ocfs2_get_refcount_tree()  local
343 		tree = osb->osb_ref_tree_lru;  in ocfs2_get_refcount_tree()
345 		tree = ocfs2_find_refcount_tree(osb, rf_blkno);  in ocfs2_get_refcount_tree()
346 	if (tree)  in ocfs2_get_refcount_tree()
380 	tree = ocfs2_find_refcount_tree(osb, rf_blkno);  in ocfs2_get_refcount_tree()
381 	if (tree)  in ocfs2_get_refcount_tree()
386 	tree = new;  in ocfs2_get_refcount_tree()
390 	*ret_tree = tree;  in ocfs2_get_refcount_tree()
392 	osb->osb_ref_tree_lru = tree;  in ocfs2_get_refcount_tree()
425 				      struct ocfs2_refcount_tree *tree, int rw)  in __ocfs2_lock_refcount_tree()  argument
429 	ret = ocfs2_refcount_lock(tree, rw);  in __ocfs2_lock_refcount_tree()
436 		down_write(&tree->rf_sem);  in __ocfs2_lock_refcount_tree()
438 		down_read(&tree->rf_sem);  in __ocfs2_lock_refcount_tree()
458 	struct ocfs2_refcount_tree *tree = NULL;  in ocfs2_lock_refcount_tree()  local
463 	ret = ocfs2_get_refcount_tree(osb, ref_blkno, &tree);  in ocfs2_lock_refcount_tree()
469 	ocfs2_refcount_tree_get(tree);  in ocfs2_lock_refcount_tree()
471 	ret = __ocfs2_lock_refcount_tree(osb, tree, rw);  in ocfs2_lock_refcount_tree()
474 		ocfs2_refcount_tree_put(tree);  in ocfs2_lock_refcount_tree()
478 	ret = ocfs2_read_refcount_block(&tree->rf_ci, tree->rf_blkno,  in ocfs2_lock_refcount_tree()
482 		ocfs2_unlock_refcount_tree(osb, tree, rw);  in ocfs2_lock_refcount_tree()
483 		ocfs2_refcount_tree_put(tree);  in ocfs2_lock_refcount_tree()
497 	if (tree->rf_generation != le32_to_cpu(rb->rf_generation)) {  in ocfs2_lock_refcount_tree()
498 		if (!tree->rf_removed) {  in ocfs2_lock_refcount_tree()
499 			ocfs2_erase_refcount_tree_from_list(osb, tree);  in ocfs2_lock_refcount_tree()
500 			tree->rf_removed = 1;  in ocfs2_lock_refcount_tree()
504 		ocfs2_unlock_refcount_tree(osb, tree, rw);  in ocfs2_lock_refcount_tree()
510 			ocfs2_refcount_tree_put(tree);  in ocfs2_lock_refcount_tree()
516 	*ret_tree = tree;  in ocfs2_lock_refcount_tree()
527 				struct ocfs2_refcount_tree *tree, int rw)  in ocfs2_unlock_refcount_tree()  argument
530 		up_write(&tree->rf_sem);  in ocfs2_unlock_refcount_tree()
532 		up_read(&tree->rf_sem);  in ocfs2_unlock_refcount_tree()
534 	ocfs2_refcount_unlock(tree, rw);  in ocfs2_unlock_refcount_tree()
535 	ocfs2_refcount_tree_put(tree);  in ocfs2_unlock_refcount_tree()
541 	struct ocfs2_refcount_tree *tree;  in ocfs2_purge_refcount_trees()  local
545 		tree = rb_entry(node, struct ocfs2_refcount_tree, rf_node);  in ocfs2_purge_refcount_trees()
548 				(unsigned long long) tree->rf_blkno);  in ocfs2_purge_refcount_trees()
550 		rb_erase(&tree->rf_node, root);  in ocfs2_purge_refcount_trees()
551 		ocfs2_free_refcount_tree(tree);  in ocfs2_purge_refcount_trees()
570 	struct ocfs2_refcount_tree *new_tree = NULL, *tree = NULL;  in ocfs2_create_refcount_tree()  local
667 	tree = ocfs2_find_refcount_tree(osb, first_blkno);  in ocfs2_create_refcount_tree()
675 	BUG_ON(tree && tree->rf_generation == new_tree->rf_generation);  in ocfs2_create_refcount_tree()
676 	if (tree)  in ocfs2_create_refcount_tree()
677 		ocfs2_erase_refcount_tree_from_list_no_lock(osb, tree);  in ocfs2_create_refcount_tree()
681 	if (tree)  in ocfs2_create_refcount_tree()
682 		ocfs2_refcount_tree_put(tree);  in ocfs2_create_refcount_tree()
2310 	struct ocfs2_refcount_tree *tree;  in ocfs2_decrease_refcount()  local
2320 	ret = ocfs2_get_refcount_tree(OCFS2_SB(inode->i_sb), ref_blkno, &tree);  in ocfs2_decrease_refcount()
2326 	ret = ocfs2_read_refcount_block(&tree->rf_ci, tree->rf_blkno,  in ocfs2_decrease_refcount()
2333 	ret = __ocfs2_decrease_refcount(handle, &tree->rf_ci, ref_root_bh,  in ocfs2_decrease_refcount()
2546 	struct ocfs2_refcount_tree *tree;  in ocfs2_prepare_refcount_change_for_del()  local
2560 				      refcount_loc, &tree);  in ocfs2_prepare_refcount_change_for_del()
2566 	ret = ocfs2_read_refcount_block(&tree->rf_ci, refcount_loc,  in ocfs2_prepare_refcount_change_for_del()
2574 					       &tree->rf_ci,  in ocfs2_prepare_refcount_change_for_del()