BLK_ADD_TRACE_RQ(9) Block Devices BLK_ADD_TRACE_RQ(9)
NAME blk_add_trace_rq - Add a trace for a request oriented action
SYNOPSIS void blk_add_trace_rq(struct request_queue * q, struct request * rq, u32 what);
ARGUMENTS q queue the io is for
rq the source request
what the action
DESCRIPTION Records an action against a request. Will log the bio offset + size.
COPYRIGHT Kernel Hackers Manual 2.6. September 2014 BLK_ADD_TRACE_RQ(9)