58 static inline int extent_map_in_tree(const struct extent_map *em)  in extent_map_in_tree()  argument
60 	return !RB_EMPTY_NODE(&em->rb_node);  in extent_map_in_tree()
63 static inline u64 extent_map_end(struct extent_map *em)  in extent_map_end()  argument
65 	if (em->start + em->len < em->start)  in extent_map_end()
67 	return em->start + em->len;  in extent_map_end()
70 static inline u64 extent_map_block_end(struct extent_map *em)  in extent_map_block_end()  argument
72 	if (em->block_start + em->block_len < em->block_start)  in extent_map_block_end()
74 	return em->block_start + em->block_len;  in extent_map_block_end()
81 		       struct extent_map *em, int modified);
82 void remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em);
89 void free_extent_map(struct extent_map *em);
93 void clear_em_logging(struct extent_map_tree *tree, struct extent_map *em);