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, unsigned int nr_bytes, u32 what);

ARGUMENTS

q
    queue the io is for

rq
    the source request

nr_bytes
    number of completed bytes

what
    the action

DESCRIPTION

Records an action against a request. Will log the bio offset + size.

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