From: Jens Axboe <axboe@kernel.dk>
To: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: linux-block@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
Hannes Reinecke <hare@suse.com>
Subject: Re: [PATCH v3 2/5] blk-mq: Restart a single queue if tag sets are shared
Date: Thu, 6 Apr 2017 13:21:28 -0600 [thread overview]
Message-ID: <e5c27abd-d3ad-ac21-2a37-d20999d459f5@kernel.dk> (raw)
In-Reply-To: <4f5ecfba-f2c9-8b54-f879-86b84f407599@kernel.dk>
On 04/06/2017 01:12 PM, Jens Axboe wrote:
> On 04/06/2017 12:10 PM, Bart Van Assche wrote:
>> + for (i = 0; i < queue->nr_hw_queues; i++) {
>> + j = (i + hctx->queue_num + 1) % queue->nr_hw_queues;
>> + h = queue->queue_hw_ctx[j];
>> + if (h->tags == tags && blk_mq_sched_restart_hctx(h))
>> + break;
>
> I'm pretty sure that doing:
>
> j = i + hctx->queue_num + 1;;
And 'i' too many there of course:
j = hctx->queue_num + 1;;
--
Jens Axboe
next prev parent reply other threads:[~2017-04-06 19:21 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-06 18:10 [PATCH v3 0/5] Avoid that scsi-mq queue processing stalls Bart Van Assche
2017-04-06 18:10 ` [PATCH v3 1/5] blk-mq: Make it safe to use RCU to iterate over blk_mq_tag_set.tag_list Bart Van Assche
2017-04-07 9:46 ` Ming Lei
2017-04-07 15:15 ` Bart Van Assche
2017-04-06 18:10 ` [PATCH v3 2/5] blk-mq: Restart a single queue if tag sets are shared Bart Van Assche
2017-04-06 19:12 ` Jens Axboe
2017-04-06 19:21 ` Jens Axboe [this message]
2017-04-07 15:12 ` Bart Van Assche
2017-04-06 18:10 ` [PATCH v3 3/5] blk-mq: Clarify comments in blk_mq_dispatch_rq_list() Bart Van Assche
2017-04-06 18:10 ` [PATCH v3 4/5] blk-mq: Introduce blk_mq_delay_run_hw_queue() Bart Van Assche
2017-04-07 10:23 ` Ming Lei
2017-04-07 15:13 ` Bart Van Assche
2017-04-06 18:10 ` [PATCH v3 5/5] scsi: Avoid that SCSI queues get stuck Bart Van Assche
2017-04-07 9:41 ` [PATCH v3 0/5] Avoid that scsi-mq queue processing stalls Ming Lei
2017-04-07 15:18 ` Bart Van Assche
2017-04-07 15:34 ` Ming Lei
2017-04-07 15:46 ` Bart Van Assche
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