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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¶
struct request_queue * q
queue the io is for
struct request * rq
the source request
unsigned int nr_bytes
number of completed bytes
u32 what
the action
DESCRIPTION¶
Records an action against a request. Will log the bio offset + size.
COPYRIGHT¶
| July 2017 | Kernel Hackers Manual 4.11 |