BLK_TC_REQUEUE     78 include/uapi/linux/blktrace_api.h #define	BLK_TA_REQUEUE		(__BLK_TA_REQUEUE | BLK_TC_ACT(BLK_TC_REQUEUE))
BLK_TC_REQUEUE   1720 kernel/trace/blktrace.c 	{ BLK_TC_REQUEUE,	"requeue"	},