exception_time   1480 drivers/md/dm-thin-metadata.c 	uint32_t exception_time;
exception_time   1483 drivers/md/dm-thin-metadata.c 	unpack_block_time(block_time, &exception_block, &exception_time);
exception_time   1485 drivers/md/dm-thin-metadata.c 	result->shared = __snapshotted_since(td, exception_time);