blk_add_trace_rq (9) Linux Manual Page
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.