57 static inline int extent_map_in_tree(const struct extent_map *em)  in extent_map_in_tree()  argument
59 	return !RB_EMPTY_NODE(&em->rb_node);  in extent_map_in_tree()
62 static inline u64 extent_map_end(struct extent_map *em)  in extent_map_end()  argument
64 	if (em->start + em->len < em->start)  in extent_map_end()
66 	return em->start + em->len;  in extent_map_end()
69 static inline u64 extent_map_block_end(struct extent_map *em)  in extent_map_block_end()  argument
71 	if (em->block_start + em->block_len < em->block_start)  in extent_map_block_end()
73 	return em->block_start + em->block_len;  in extent_map_block_end()
80 		       struct extent_map *em, int modified);
81 int remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em);
88 void free_extent_map(struct extent_map *em);
92 void clear_em_logging(struct extent_map_tree *tree, struct extent_map *em);