35 void extent_map_tree_init(struct extent_map_tree *tree)  in extent_map_tree_init()  argument
37 	tree->map = RB_ROOT;  in extent_map_tree_init()
38 	INIT_LIST_HEAD(&tree->modified_extents);  in extent_map_tree_init()
39 	rwlock_init(&tree->lock);  in extent_map_tree_init()
226 static void try_merge_map(struct extent_map_tree *tree, struct extent_map *em)  in try_merge_map()  argument
245 			rb_erase(&merge->rb_node, &tree->map);  in try_merge_map()
257 		rb_erase(&merge->rb_node, &tree->map);  in try_merge_map()
276 int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len,  in unpin_extent_cache()  argument
283 	write_lock(&tree->lock);  in unpin_extent_cache()
284 	em = lookup_extent_mapping(tree, start, len);  in unpin_extent_cache()
301 	try_merge_map(tree, em);  in unpin_extent_cache()
310 	write_unlock(&tree->lock);  in unpin_extent_cache()
315 void clear_em_logging(struct extent_map_tree *tree, struct extent_map *em)  in clear_em_logging()  argument
319 		try_merge_map(tree, em);  in clear_em_logging()
322 static inline void setup_extent_mapping(struct extent_map_tree *tree,  in setup_extent_mapping()  argument
331 		list_move(&em->list, &tree->modified_extents);  in setup_extent_mapping()
333 		try_merge_map(tree, em);  in setup_extent_mapping()
346 int add_extent_mapping(struct extent_map_tree *tree,  in add_extent_mapping()  argument
351 	ret = tree_insert(&tree->map, em);  in add_extent_mapping()
355 	setup_extent_mapping(tree, em, modified);  in add_extent_mapping()
361 __lookup_extent_mapping(struct extent_map_tree *tree,  in __lookup_extent_mapping()  argument
370 	rb_node = __tree_search(&tree->map, start, &prev, &next);  in __lookup_extent_mapping()
400 struct extent_map *lookup_extent_mapping(struct extent_map_tree *tree,  in lookup_extent_mapping()  argument
403 	return __lookup_extent_mapping(tree, start, len, 1);  in lookup_extent_mapping()
417 struct extent_map *search_extent_mapping(struct extent_map_tree *tree,  in search_extent_mapping()  argument
420 	return __lookup_extent_mapping(tree, start, len, 0);  in search_extent_mapping()
431 int remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em)  in remove_extent_mapping()  argument
436 	rb_erase(&em->rb_node, &tree->map);  in remove_extent_mapping()
443 void replace_extent_mapping(struct extent_map_tree *tree,  in replace_extent_mapping()  argument
452 	rb_replace_node(&cur->rb_node, &new->rb_node, &tree->map);  in replace_extent_mapping()
455 	setup_extent_mapping(tree, new, modified);  in replace_extent_mapping()