snap_id1 1223 drivers/block/rbd.c u64 snap_id1 = *(u64 *)s1; snap_id1 1226 drivers/block/rbd.c if (snap_id1 < snap_id2) snap_id1 1228 drivers/block/rbd.c return snap_id1 == snap_id2 ? 0 : -1;