From: Jens Axboe <axboe@kernel.dk>
To: Ming Lei <ming.lei@redhat.com>
Cc: linux-block@vger.kernel.org, Jeff Moyer <jmoyer@redhat.com>,
Mike Snitzer <snitzer@redhat.com>, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH] blk-mq: skip zero-queue maps in blk_mq_map_swqueue
Date: Mon, 17 Dec 2018 10:32:09 -0700 [thread overview]
Message-ID: <745cbe77-efb1-c21d-2f8c-d0afec341b37@kernel.dk> (raw)
In-Reply-To: <20181217172856.14743-1-ming.lei@redhat.com>
On 12/17/18 10:28 AM, Ming Lei wrote:
> From 7e849dd9cf37 ("nvme-pci: don't share queue maps"), the mapping
> table won't be initialized actually if map->nr_queues is zero, so
> we can't use blk_mq_map_queue_type() to retrieve hctx any more.
>
> This way still may cause broken mapping, fix it by skipping zero-queues
> maps in blk_mq_map_swqueue().
Applied, thanks.
--
Jens Axboe
prev parent reply other threads:[~2018-12-17 17:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-17 17:28 [PATCH] blk-mq: skip zero-queue maps in blk_mq_map_swqueue Ming Lei
2018-12-17 17:30 ` Christoph Hellwig
2018-12-17 17:32 ` Jens Axboe [this message]
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