REQ_RW_SYNC      1093 block/blk-core.c 		req->cmd_flags |= REQ_RW_SYNC;
REQ_RW_SYNC      1202 block/blk-core.c 		rw_flags |= REQ_RW_SYNC;
REQ_RW_SYNC      2016 block/cfq-iosched.c 	cfqq = cic_to_cfqq(cic, rw & REQ_RW_SYNC);
REQ_RW_SYNC       590 include/linux/blkdev.h #define rq_is_sync(rq)		(rq_data_dir((rq)) == READ || (rq)->cmd_flags & REQ_RW_SYNC)