1050 			     u64 group_start, struct extent_map *em)  in btrfs_remove_block_group()  argument
1279 		remove_extent_mapping(em_tree, em);  in btrfs_remove_block_group()
1282 		free_extent_map(em);  in btrfs_remove_block_group()
1299 	struct extent_map *em;  in btrfs_start_trans_remove_block_group()  local
1304 	em = lookup_extent_mapping(em_tree, chunk_offset, 1);  in btrfs_start_trans_remove_block_group()
1306 	ASSERT(em && em->start == chunk_offset);  in btrfs_start_trans_remove_block_group()
1327 	map = em->map_lookup;  in btrfs_start_trans_remove_block_group()
1329 	free_extent_map(em);  in btrfs_start_trans_remove_block_group()
1931 	struct extent_map *em;  in read_bg_from_eb()  local
1943 	em = lookup_extent_mapping(em_tree, key->objectid, key->offset);  in read_bg_from_eb()
1945 	if (!em) {  in read_bg_from_eb()
1952 	if (em->start != key->objectid || em->len != key->offset) {  in read_bg_from_eb()
1955 			key->objectid, key->offset, em->start, em->len);  in read_bg_from_eb()
1965 	if (flags != (em->map_lookup->type & BTRFS_BLOCK_GROUP_TYPE_MASK)) {  in read_bg_from_eb()
1969 			  (BTRFS_BLOCK_GROUP_TYPE_MASK & em->map_lookup->type));  in read_bg_from_eb()
1974 	free_extent_map(em);  in read_bg_from_eb()
2027 	struct extent_map *em;  in btrfs_rmap_block()  local
2036 	em = btrfs_get_chunk_map(fs_info, chunk_start, 1);  in btrfs_rmap_block()
2037 	if (IS_ERR(em))  in btrfs_rmap_block()
2040 	map = em->map_lookup;  in btrfs_rmap_block()
2041 	data_stripe_length = em->orig_block_len;  in btrfs_rmap_block()
2043 	chunk_start = em->start;  in btrfs_rmap_block()
2097 	free_extent_map(em);  in btrfs_rmap_block()
2203 	struct extent_map *em;  in check_chunk_block_group_mappings()  local
2215 		em = lookup_extent_mapping(map_tree, start, 1);  in check_chunk_block_group_mappings()
2217 		if (!em)  in check_chunk_block_group_mappings()
2220 		bg = btrfs_lookup_block_group(fs_info, em->start);  in check_chunk_block_group_mappings()
2224 				     em->start, em->len);  in check_chunk_block_group_mappings()
2226 			free_extent_map(em);  in check_chunk_block_group_mappings()
2229 		if (bg->start != em->start || bg->length != em->len ||  in check_chunk_block_group_mappings()
2231 		    (em->map_lookup->type & BTRFS_BLOCK_GROUP_TYPE_MASK)) {  in check_chunk_block_group_mappings()
2234 				em->start, em->len,  in check_chunk_block_group_mappings()
2235 				em->map_lookup->type & BTRFS_BLOCK_GROUP_TYPE_MASK,  in check_chunk_block_group_mappings()
2239 			free_extent_map(em);  in check_chunk_block_group_mappings()
2243 		start = em->start + em->len;  in check_chunk_block_group_mappings()
2244 		free_extent_map(em);  in check_chunk_block_group_mappings()
2377 		struct extent_map *em;  in fill_dummy_bgs()  local
2381 		em = rb_entry(node, struct extent_map, rb_node);  in fill_dummy_bgs()
2382 		map = em->map_lookup;  in fill_dummy_bgs()
2383 		bg = btrfs_create_block_group_cache(fs_info, em->start);  in fill_dummy_bgs()
2390 		bg->length = em->len;  in fill_dummy_bgs()
2393 		bg->used = em->len;  in fill_dummy_bgs()
2621 	struct extent_map *em;  in insert_dev_extents()  local
2628 	em = btrfs_get_chunk_map(fs_info, chunk_offset, chunk_size);  in insert_dev_extents()
2629 	if (IS_ERR(em))  in insert_dev_extents()
2630 		return PTR_ERR(em);  in insert_dev_extents()
2632 	map = em->map_lookup;  in insert_dev_extents()
2633 	stripe_size = em->orig_block_len;  in insert_dev_extents()
2656 	free_extent_map(em);  in insert_dev_extents()
4424 	struct extent_map *em;  in btrfs_unfreeze_block_group()  local
4435 		em = lookup_extent_mapping(em_tree, block_group->start,  in btrfs_unfreeze_block_group()
4437 		BUG_ON(!em); /* logic error, can't happen */  in btrfs_unfreeze_block_group()
4438 		remove_extent_mapping(em_tree, em);  in btrfs_unfreeze_block_group()
4442 		free_extent_map(em);  in btrfs_unfreeze_block_group()
4443 		free_extent_map(em);  in btrfs_unfreeze_block_group()