Lines Matching refs:em
439 struct extent_map *em; in add_ra_bio_pages() local
488 em = lookup_extent_mapping(em_tree, last_offset, in add_ra_bio_pages()
492 if (!em || last_offset < em->start || in add_ra_bio_pages()
493 (last_offset + PAGE_SIZE > extent_map_end(em)) || in add_ra_bio_pages()
494 (em->block_start >> 9) != cb->orig_bio->bi_iter.bi_sector) { in add_ra_bio_pages()
495 free_extent_map(em); in add_ra_bio_pages()
501 free_extent_map(em); in add_ra_bio_pages()
561 struct extent_map *em; in btrfs_submit_compressed_read() local
571 em = lookup_extent_mapping(em_tree, in btrfs_submit_compressed_read()
575 if (!em) in btrfs_submit_compressed_read()
578 compressed_len = em->block_len; in btrfs_submit_compressed_read()
589 cb->start = em->orig_start; in btrfs_submit_compressed_read()
590 em_len = em->len; in btrfs_submit_compressed_read()
591 em_start = em->start; in btrfs_submit_compressed_read()
593 free_extent_map(em); in btrfs_submit_compressed_read()
594 em = NULL; in btrfs_submit_compressed_read()
714 free_extent_map(em); in btrfs_submit_compressed_read()