VIRTUAL           123 drivers/md/dm-thin.c 	key->virtual = (ls == VIRTUAL);
VIRTUAL           138 drivers/md/dm-thin.c 	build_key(td, VIRTUAL, b, b + 1llu, key);
VIRTUAL          1778 drivers/md/dm-thin.c 	build_key(tc->td, VIRTUAL, begin, end, &virt_key);