From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@fb.com>,
linux-block@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>
Cc: Bart Van Assche <bart.vanassche@sandisk.com>,
Laurence Oberman <loberman@redhat.com>,
Paolo Valente <paolo.valente@linaro.org>,
Oleksandr Natalenko <oleksandr@natalenko.name>,
Tom Nguyen <tom81094@gmail.com>,
linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
Omar Sandoval <osandov@fb.com>,
John Garry <john.garry@huawei.com>,
Ming Lei <ming.lei@redhat.com>
Subject: [PATCH V10 4/8] block: kyber: check if there is request in ctx in kyber_has_work()
Date: Sat, 14 Oct 2017 17:22:28 +0800 [thread overview]
Message-ID: <20171014092232.13943-5-ming.lei@redhat.com> (raw)
In-Reply-To: <20171014092232.13943-1-ming.lei@redhat.com>
There may be request in sw queue, and not fetched to domain queue
yet, so check it in kyber_has_work().
Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
block/kyber-iosched.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c
index f58cab82105b..94df3ce99f2f 100644
--- a/block/kyber-iosched.c
+++ b/block/kyber-iosched.c
@@ -641,7 +641,7 @@ static bool kyber_has_work(struct blk_mq_hw_ctx *hctx)
if (!list_empty_careful(&khd->rqs[i]))
return true;
}
- return false;
+ return sbitmap_any_bit_set(&hctx->ctx_map);
}
#define KYBER_LAT_SHOW_STORE(op) \
--
2.9.5
next prev parent reply other threads:[~2017-10-14 9:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-14 9:22 [PATCH V10 0/8] blk-mq-sched: improve sequential I/O performance Ming Lei
2017-10-14 9:22 ` [PATCH V10 1/8] blk-mq-sched: dispatch from scheduler only after progress is made on ->dispatch Ming Lei
2017-10-14 9:22 ` [PATCH V10 2/8] blk-mq-sched: move actual dispatching into one helper Ming Lei
2017-10-14 9:22 ` [PATCH V10 3/8] sbitmap: introduce __sbitmap_for_each_set() Ming Lei
2017-10-14 9:22 ` Ming Lei [this message]
2017-10-14 9:22 ` [PATCH V10 5/8] blk-mq: introduce .get_budget and .put_budget in blk_mq_ops Ming Lei
2017-10-14 9:22 ` [PATCH V10 6/8] blk-mq-sched: improve dispatching from sw queue Ming Lei
2017-10-14 9:22 ` [PATCH V10 7/8] SCSI: allow to pass null rq to scsi_prep_state_check() Ming Lei
2017-10-14 9:22 ` [PATCH V10 8/8] SCSI: implement .get_budget and .put_budget for blk-mq Ming Lei
2017-10-14 15:39 ` [PATCH V10 0/8] blk-mq-sched: improve sequential I/O performance Jens Axboe
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