Lines Matching refs:em
452 struct extent_map *em; in add_ra_bio_pages() local
504 em = lookup_extent_mapping(em_tree, last_offset, in add_ra_bio_pages()
508 if (!em || last_offset < em->start || in add_ra_bio_pages()
509 (last_offset + PAGE_CACHE_SIZE > extent_map_end(em)) || in add_ra_bio_pages()
510 (em->block_start >> 9) != cb->orig_bio->bi_iter.bi_sector) { in add_ra_bio_pages()
511 free_extent_map(em); in add_ra_bio_pages()
517 free_extent_map(em); in add_ra_bio_pages()
580 struct extent_map *em; in btrfs_submit_compressed_read() local
590 em = lookup_extent_mapping(em_tree, in btrfs_submit_compressed_read()
594 if (!em) in btrfs_submit_compressed_read()
597 compressed_len = em->block_len; in btrfs_submit_compressed_read()
608 cb->start = em->orig_start; in btrfs_submit_compressed_read()
609 em_len = em->len; in btrfs_submit_compressed_read()
610 em_start = em->start; in btrfs_submit_compressed_read()
612 free_extent_map(em); in btrfs_submit_compressed_read()
613 em = NULL; in btrfs_submit_compressed_read()
743 free_extent_map(em); in btrfs_submit_compressed_read()