863 			     u64 group_start, struct extent_map *em)  in btrfs_remove_block_group()  argument
1098 		remove_extent_mapping(em_tree, em);  in btrfs_remove_block_group()
1101 		free_extent_map(em);  in btrfs_remove_block_group()
1118 	struct extent_map *em;  in btrfs_start_trans_remove_block_group()  local
1123 	em = lookup_extent_mapping(em_tree, chunk_offset, 1);  in btrfs_start_trans_remove_block_group()
1125 	ASSERT(em && em->start == chunk_offset);  in btrfs_start_trans_remove_block_group()
1146 	map = em->map_lookup;  in btrfs_start_trans_remove_block_group()
1148 	free_extent_map(em);  in btrfs_start_trans_remove_block_group()
1664 	struct extent_map *em;  in read_bg_from_eb()  local
1676 	em = lookup_extent_mapping(em_tree, key->objectid, key->offset);  in read_bg_from_eb()
1678 	if (!em) {  in read_bg_from_eb()
1685 	if (em->start != key->objectid || em->len != key->offset) {  in read_bg_from_eb()
1688 			key->objectid, key->offset, em->start, em->len);  in read_bg_from_eb()
1698 	if (flags != (em->map_lookup->type & BTRFS_BLOCK_GROUP_TYPE_MASK)) {  in read_bg_from_eb()
1702 			  (BTRFS_BLOCK_GROUP_TYPE_MASK & em->map_lookup->type));  in read_bg_from_eb()
1707 	free_extent_map(em);  in read_bg_from_eb()
1762 	struct extent_map *em;  in btrfs_rmap_block()  local
1771 	em = btrfs_get_chunk_map(fs_info, chunk_start, 1);  in btrfs_rmap_block()
1772 	if (IS_ERR(em))  in btrfs_rmap_block()
1775 	map = em->map_lookup;  in btrfs_rmap_block()
1776 	data_stripe_length = em->orig_block_len;  in btrfs_rmap_block()
1778 	chunk_start = em->start;  in btrfs_rmap_block()
1835 	free_extent_map(em);  in btrfs_rmap_block()
1940 	struct extent_map *em;  in check_chunk_block_group_mappings()  local
1952 		em = lookup_extent_mapping(map_tree, start, 1);  in check_chunk_block_group_mappings()
1954 		if (!em)  in check_chunk_block_group_mappings()
1957 		bg = btrfs_lookup_block_group(fs_info, em->start);  in check_chunk_block_group_mappings()
1961 				     em->start, em->len);  in check_chunk_block_group_mappings()
1963 			free_extent_map(em);  in check_chunk_block_group_mappings()
1966 		if (bg->start != em->start || bg->length != em->len ||  in check_chunk_block_group_mappings()
1968 		    (em->map_lookup->type & BTRFS_BLOCK_GROUP_TYPE_MASK)) {  in check_chunk_block_group_mappings()
1971 				em->start, em->len,  in check_chunk_block_group_mappings()
1972 				em->map_lookup->type & BTRFS_BLOCK_GROUP_TYPE_MASK,  in check_chunk_block_group_mappings()
1976 			free_extent_map(em);  in check_chunk_block_group_mappings()
1980 		start = em->start + em->len;  in check_chunk_block_group_mappings()
1981 		free_extent_map(em);  in check_chunk_block_group_mappings()
2111 		struct extent_map *em;  in fill_dummy_bgs()  local
2115 		em = rb_entry(node, struct extent_map, rb_node);  in fill_dummy_bgs()
2116 		map = em->map_lookup;  in fill_dummy_bgs()
2117 		bg = btrfs_create_block_group_cache(fs_info, em->start);  in fill_dummy_bgs()
2124 		bg->length = em->len;  in fill_dummy_bgs()
2127 		bg->used = em->len;  in fill_dummy_bgs()
2344 	struct extent_map *em;  in insert_dev_extents()  local
2351 	em = btrfs_get_chunk_map(fs_info, chunk_offset, chunk_size);  in insert_dev_extents()
2352 	if (IS_ERR(em))  in insert_dev_extents()
2353 		return PTR_ERR(em);  in insert_dev_extents()
2355 	map = em->map_lookup;  in insert_dev_extents()
2356 	stripe_size = em->orig_block_len;  in insert_dev_extents()
2379 	free_extent_map(em);  in insert_dev_extents()
4095 	struct extent_map *em;  in btrfs_unfreeze_block_group()  local
4106 		em = lookup_extent_mapping(em_tree, block_group->start,  in btrfs_unfreeze_block_group()
4108 		BUG_ON(!em); /* logic error, can't happen */  in btrfs_unfreeze_block_group()
4109 		remove_extent_mapping(em_tree, em);  in btrfs_unfreeze_block_group()
4113 		free_extent_map(em);  in btrfs_unfreeze_block_group()
4114 		free_extent_map(em);  in btrfs_unfreeze_block_group()