32 	/* This em is merged from two or more physically adjacent ems */
93 	 * Generation of the extent map, for merged em it's the highest
111 static inline void extent_map_set_compression(struct extent_map *em,  in extent_map_set_compression()  argument
115 		em->flags |= EXTENT_FLAG_COMPRESS_ZLIB;  in extent_map_set_compression()
117 		em->flags |= EXTENT_FLAG_COMPRESS_LZO;  in extent_map_set_compression()
119 		em->flags |= EXTENT_FLAG_COMPRESS_ZSTD;  in extent_map_set_compression()
122 static inline enum btrfs_compression_type extent_map_compression(const struct extent_map *em)  in extent_map_compression()  argument
124 	if (em->flags & EXTENT_FLAG_COMPRESS_ZLIB)  in extent_map_compression()
127 	if (em->flags & EXTENT_FLAG_COMPRESS_LZO)  in extent_map_compression()
130 	if (em->flags & EXTENT_FLAG_COMPRESS_ZSTD)  in extent_map_compression()
140 static inline bool extent_map_is_compressed(const struct extent_map *em)  in extent_map_is_compressed()  argument
142 	return (em->flags & (EXTENT_FLAG_COMPRESS_ZLIB |  in extent_map_is_compressed()
147 static inline int extent_map_in_tree(const struct extent_map *em)  in extent_map_in_tree()  argument
149 	return !RB_EMPTY_NODE(&em->rb_node);  in extent_map_in_tree()
152 static inline u64 extent_map_block_start(const struct extent_map *em)  in extent_map_block_start()  argument
154 	if (em->disk_bytenr < EXTENT_MAP_LAST_BYTE) {  in extent_map_block_start()
155 		if (extent_map_is_compressed(em))  in extent_map_block_start()
156 			return em->disk_bytenr;  in extent_map_block_start()
157 		return em->disk_bytenr + em->offset;  in extent_map_block_start()
159 	return em->disk_bytenr;  in extent_map_block_start()
162 static inline u64 extent_map_end(const struct extent_map *em)  in extent_map_end()  argument
164 	if (em->start + em->len < em->start)  in extent_map_end()
166 	return em->start + em->len;  in extent_map_end()
172 void remove_extent_mapping(struct btrfs_inode *inode, struct extent_map *em);
177 void free_extent_map(struct extent_map *em);
181 void clear_em_logging(struct btrfs_inode *inode, struct extent_map *em);