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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, 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.

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.