Lines Matching refs:em
418 struct extent_map *em; in add_ra_bio_pages() local
469 em = lookup_extent_mapping(em_tree, last_offset, in add_ra_bio_pages()
473 if (!em || last_offset < em->start || in add_ra_bio_pages()
474 (last_offset + PAGE_SIZE > extent_map_end(em)) || in add_ra_bio_pages()
475 (em->block_start >> 9) != cb->orig_bio->bi_iter.bi_sector) { in add_ra_bio_pages()
476 free_extent_map(em); in add_ra_bio_pages()
482 free_extent_map(em); in add_ra_bio_pages()
543 struct extent_map *em; in btrfs_submit_compressed_read() local
553 em = lookup_extent_mapping(em_tree, in btrfs_submit_compressed_read()
557 if (!em) in btrfs_submit_compressed_read()
560 compressed_len = em->block_len; in btrfs_submit_compressed_read()
571 cb->start = em->orig_start; in btrfs_submit_compressed_read()
572 em_len = em->len; in btrfs_submit_compressed_read()
573 em_start = em->start; in btrfs_submit_compressed_read()
575 free_extent_map(em); in btrfs_submit_compressed_read()
576 em = NULL; in btrfs_submit_compressed_read()
690 free_extent_map(em); in btrfs_submit_compressed_read()