Lines Matching refs:snap_dest
437 * snap_dest - a snapshot capable of receiving exception handover.
441 * Possible return values and states of snap_src and snap_dest.
444 * 2: snap_src, snap_dest - waiting for handover
446 * 1: NULL, snap_dest - source got destroyed without handover
450 struct dm_snapshot **snap_dest,
475 } else if (snap_dest)
476 *snap_dest = s;
491 struct dm_snapshot *snap_src = NULL, *snap_dest = NULL;
495 if ((__find_snapshots_sharing_cow(snap, &snap_src, &snap_dest,
497 snap_dest) {
1453 struct dm_snapshot *snap_dest)
1463 u.table_swap = snap_dest->complete;
1464 snap_dest->complete = snap_src->complete;
1467 u.store_swap = snap_dest->store;
1468 snap_dest->store = snap_src->store;
1469 snap_dest->store->userspace_supports_overflow = u.store_swap->userspace_supports_overflow;
1472 snap_dest->store->snap = snap_dest;
1475 snap_dest->ti->max_io_len = snap_dest->store->chunk_size;
1476 snap_dest->valid = snap_src->valid;
1477 snap_dest->snapshot_overflowed = snap_src->snapshot_overflowed;
1491 struct dm_snapshot *snap_src = NULL, *snap_dest = NULL;
1495 (void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);
1496 if (snap_src && snap_dest && (s == snap_src)) {
1497 down_write(&snap_dest->lock);
1498 snap_dest->valid = 0;
1499 up_write(&snap_dest->lock);
2222 struct dm_snapshot *snap_src = NULL, *snap_dest = NULL;
2225 (void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);
2226 if (snap_src && snap_dest) {
2247 struct dm_snapshot *snap_src = NULL, *snap_dest = NULL, *snap_merging = NULL;
2281 (void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);
2282 if (snap_src && snap_dest) {
2284 down_write_nested(&snap_dest->lock, SINGLE_DEPTH_NESTING);
2285 __handover_exceptions(snap_src, snap_dest);
2286 up_write(&snap_dest->lock);
2414 struct dm_snapshot *snap_src = NULL, *snap_dest = NULL;
2418 (void) __find_snapshots_sharing_cow(snap, &snap_src, &snap_dest, NULL);
2419 if (snap_src && snap_dest)