2303 	struct extent_map *split_pre = NULL;  in split_zoned_em()  local
2313 	split_pre = alloc_extent_map();  in split_zoned_em()
2318 	if (!split_pre || (pre && !split_mid) || (post && !split_post)) {  in split_zoned_em()
2344 	split_pre->start = em->start;  in split_zoned_em()
2345 	split_pre->len = (pre ? pre : em->len - post);  in split_zoned_em()
2346 	split_pre->orig_start = split_pre->start;  in split_zoned_em()
2347 	split_pre->block_start = em->block_start;  in split_zoned_em()
2348 	split_pre->block_len = split_pre->len;  in split_zoned_em()
2349 	split_pre->orig_block_len = split_pre->block_len;  in split_zoned_em()
2350 	split_pre->ram_bytes = split_pre->len;  in split_zoned_em()
2351 	split_pre->flags = flags;  in split_zoned_em()
2352 	split_pre->compress_type = em->compress_type;  in split_zoned_em()
2353 	split_pre->generation = em->generation;  in split_zoned_em()
2355 	replace_extent_mapping(em_tree, em, split_pre, 1);  in split_zoned_em()
2401 	free_extent_map(split_pre);  in split_zoned_em()