34 void extent_map_tree_init(struct extent_map_tree *tree)  in extent_map_tree_init()  argument
36 	tree->map = RB_ROOT;  in extent_map_tree_init()
37 	INIT_LIST_HEAD(&tree->modified_extents);  in extent_map_tree_init()
38 	rwlock_init(&tree->lock);  in extent_map_tree_init()
225 static void try_merge_map(struct extent_map_tree *tree, struct extent_map *em)  in try_merge_map()  argument
244 			rb_erase(&merge->rb_node, &tree->map);  in try_merge_map()
256 		rb_erase(&merge->rb_node, &tree->map);  in try_merge_map()
275 int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len,  in unpin_extent_cache()  argument
282 	write_lock(&tree->lock);  in unpin_extent_cache()
283 	em = lookup_extent_mapping(tree, start, len);  in unpin_extent_cache()
300 	try_merge_map(tree, em);  in unpin_extent_cache()
309 	write_unlock(&tree->lock);  in unpin_extent_cache()
314 void clear_em_logging(struct extent_map_tree *tree, struct extent_map *em)  in clear_em_logging()  argument
318 		try_merge_map(tree, em);  in clear_em_logging()
321 static inline void setup_extent_mapping(struct extent_map_tree *tree,  in setup_extent_mapping()  argument
330 		list_move(&em->list, &tree->modified_extents);  in setup_extent_mapping()
332 		try_merge_map(tree, em);  in setup_extent_mapping()
345 int add_extent_mapping(struct extent_map_tree *tree,  in add_extent_mapping()  argument
350 	ret = tree_insert(&tree->map, em);  in add_extent_mapping()
354 	setup_extent_mapping(tree, em, modified);  in add_extent_mapping()
360 __lookup_extent_mapping(struct extent_map_tree *tree,  in __lookup_extent_mapping()  argument
369 	rb_node = __tree_search(&tree->map, start, &prev, &next);  in __lookup_extent_mapping()
399 struct extent_map *lookup_extent_mapping(struct extent_map_tree *tree,  in lookup_extent_mapping()  argument
402 	return __lookup_extent_mapping(tree, start, len, 1);  in lookup_extent_mapping()
416 struct extent_map *search_extent_mapping(struct extent_map_tree *tree,  in search_extent_mapping()  argument
419 	return __lookup_extent_mapping(tree, start, len, 0);  in search_extent_mapping()
430 int remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em)  in remove_extent_mapping()  argument
435 	rb_erase(&em->rb_node, &tree->map);  in remove_extent_mapping()
442 void replace_extent_mapping(struct extent_map_tree *tree,  in replace_extent_mapping()  argument
451 	rb_replace_node(&cur->rb_node, &new->rb_node, &tree->map);  in replace_extent_mapping()
454 	setup_extent_mapping(tree, new, modified);  in replace_extent_mapping()