From 67b42d0bf7a8fd1ec0cf1acdc9550e688d7c8578 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 3 Jul 2018 11:15:00 -0400 Subject: rq-qos: introduce dio_bio callback wbt cares only about request completion time, but controllers may need information that is on the bio itself, so add a done_bio callback for rq-qos so things like blk-iolatency can use it to have the bio when it completes. Signed-off-by: Josef Bacik Signed-off-by: Jens Axboe --- block/blk-rq-qos.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'block/blk-rq-qos.c') diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c index b7b02e04f64f..5134b24482f6 100644 --- a/block/blk-rq-qos.c +++ b/block/blk-rq-qos.c @@ -88,6 +88,16 @@ void rq_qos_track(struct request_queue *q, struct request *rq, struct bio *bio) } } +void rq_qos_done_bio(struct request_queue *q, struct bio *bio) +{ + struct rq_qos *rqos; + + for(rqos = q->rq_qos; rqos; rqos = rqos->next) { + if (rqos->ops->done_bio) + rqos->ops->done_bio(rqos, bio); + } +} + /* * Return true, if we can't increase the depth further by scaling */ -- cgit v1.2.3-58-ga151