56 	RB_CLEAR_NODE(&em->rb_node);  in alloc_extent_map()
96 	struct rb_node **p = &root->rb_root.rb_node;  in tree_insert()
97 	struct rb_node *parent = NULL;  in tree_insert()
99 	struct rb_node *orig_parent = NULL;  in tree_insert()
105 		entry = rb_entry(parent, struct extent_map, rb_node);  in tree_insert()
120 		entry = rb_entry(parent, struct extent_map, rb_node);  in tree_insert()
127 	entry = rb_entry(parent, struct extent_map, rb_node);  in tree_insert()
130 		entry = rb_entry(parent, struct extent_map, rb_node);  in tree_insert()
136 	rb_link_node(&em->rb_node, orig_parent, p);  in tree_insert()
137 	rb_insert_color_cached(&em->rb_node, root, leftmost);  in tree_insert()
145 static struct rb_node *__tree_search(struct rb_root *root, u64 offset,  in __tree_search()
146 				     struct rb_node **prev_ret,  in __tree_search()
147 				     struct rb_node **next_ret)  in __tree_search()
149 	struct rb_node *n = root->rb_node;  in __tree_search()
150 	struct rb_node *prev = NULL;  in __tree_search()
151 	struct rb_node *orig_prev = NULL;  in __tree_search()
156 		entry = rb_entry(n, struct extent_map, rb_node);  in __tree_search()
172 			prev_entry = rb_entry(prev, struct extent_map, rb_node);  in __tree_search()
179 		prev_entry = rb_entry(prev, struct extent_map, rb_node);  in __tree_search()
182 			prev_entry = rb_entry(prev, struct extent_map, rb_node);  in __tree_search()
238 	struct rb_node *rb;  in try_merge_map()
252 		rb = rb_prev(&em->rb_node);  in try_merge_map()
254 			merge = rb_entry(rb, struct extent_map, rb_node);  in try_merge_map()
265 			rb_erase_cached(&merge->rb_node, &tree->map);  in try_merge_map()
266 			RB_CLEAR_NODE(&merge->rb_node);  in try_merge_map()
271 	rb = rb_next(&em->rb_node);  in try_merge_map()
273 		merge = rb_entry(rb, struct extent_map, rb_node);  in try_merge_map()
277 		rb_erase_cached(&merge->rb_node, &tree->map);  in try_merge_map()
278 		RB_CLEAR_NODE(&merge->rb_node);  in try_merge_map()
422 	struct rb_node *rb_node;  in __lookup_extent_mapping()  local
423 	struct rb_node *prev = NULL;  in __lookup_extent_mapping()
424 	struct rb_node *next = NULL;  in __lookup_extent_mapping()
427 	rb_node = __tree_search(&tree->map.rb_root, start, &prev, &next);  in __lookup_extent_mapping()
428 	if (!rb_node) {  in __lookup_extent_mapping()
430 			rb_node = prev;  in __lookup_extent_mapping()
432 			rb_node = next;  in __lookup_extent_mapping()
437 	em = rb_entry(rb_node, struct extent_map, rb_node);  in __lookup_extent_mapping()
491 	rb_erase_cached(&em->rb_node, &tree->map);  in remove_extent_mapping()
496 	RB_CLEAR_NODE(&em->rb_node);  in remove_extent_mapping()
508 	rb_replace_node_cached(&cur->rb_node, &new->rb_node, &tree->map);  in replace_extent_mapping()
509 	RB_CLEAR_NODE(&cur->rb_node);  in replace_extent_mapping()
516 	struct rb_node *next;  in next_extent_map()
518 	next = rb_next(&em->rb_node);  in next_extent_map()
521 	return container_of(next, struct extent_map, rb_node);  in next_extent_map()
526 	struct rb_node *prev;  in prev_extent_map()
528 	prev = rb_prev(&em->rb_node);  in prev_extent_map()
531 	return container_of(prev, struct extent_map, rb_node);  in prev_extent_map()