Lines Matching defs:existing
393 * existing mappings. The extent_map struct passed in will be inserted
535 * Helper for btrfs_get_extent. Given an existing extent in the tree,
536 * the existing extent is the nearest extent to map_start,
541 struct extent_map *existing,
553 if (existing->start > map_start) {
554 next = existing;
557 prev = existing;
589 * a) Returning the existing extent in @em_in if @start is within the
590 * existing em.
591 * b) Merge the existing extent with @em_in passed in.
609 struct extent_map *existing;
613 existing = search_extent_mapping(em_tree, start, len);
615 trace_btrfs_handle_em_exist(fs_info, existing, em, start, len);
618 * existing will always be non-NULL, since there must be
621 if (start >= existing->start &&
622 start < extent_map_end(existing)) {
624 *em_in = existing;
631 * The existing extent map is the one nearest to
634 ret = merge_extent_mapping(em_tree, existing,
640 "unexpected error %d: merge existing(start %llu len %llu) with em(start %llu len %llu)\n",
641 ret, existing->start, existing->len,
644 free_extent_map(existing);