REQ_WRITE         211 include/linux/blk_types.h 	(REQ_WRITE | REQ_FAILFAST_MASK | REQ_SYNC | REQ_META | REQ_PRIO | \
REQ_WRITE         640 include/linux/blkdev.h 	return !(rw_flags & REQ_WRITE) || (rw_flags & REQ_SYNC);
REQ_WRITE         189 include/linux/fs.h #define RW_MASK			REQ_WRITE