diff options
| -rw-r--r-- | block/blk-mq.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index f7428e11b109..8e41d88fcb8a 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -725,7 +725,14 @@ void blk_mq_start_request(struct request *rq) trace_block_rq_issue(rq); if (test_bit(QUEUE_FLAG_STATS, &q->queue_flags)) { - rq->io_start_time_ns = ktime_get_ns(); + u64 start_time; +#ifdef CONFIG_BLK_CGROUP + if (rq->bio) + start_time = bio_issue_time(&rq->bio->bi_issue); + else +#endif + start_time = ktime_get_ns(); + rq->io_start_time_ns = start_time; rq->stats_sectors = blk_rq_sectors(rq); rq->rq_flags |= RQF_STATS; rq_qos_issue(q, rq); |