DM_REMOVE_ONLY_DEFERRED
dm_lock_for_deletion(md, !!(flags & DM_REMOVE_MARK_DEFERRED), !!(flags & DM_REMOVE_ONLY_DEFERRED))) {
if (dev_skipped && !(flags & DM_REMOVE_ONLY_DEFERRED))
dm_hash_remove_all(DM_REMOVE_KEEP_OPEN_DEVICES | DM_REMOVE_ONLY_DEFERRED);