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Subject: Re: [PATCH] block: Fix a race between tag iteration and hardware
 queue changes
To:     Dongli Zhang <dongli.zhang@oracle.com>,
        Jianchao Wang <jianchao.w.wang@oracle.com>
Cc:     Jens Axboe <axboe@kernel.dk>, linux-block@vger.kernel.org,
        Christoph Hellwig <hch@lst.de>,
        Christoph Hellwig <hch@infradead.org>,
        Hannes Reinecke <hare@suse.com>,
        James Smart <james.smart@broadcom.com>,
        Ming Lei <ming.lei@redhat.com>,
        Keith Busch <keith.busch@intel.com>, stable@vger.kernel.org
References: <20190402223202.30752-1-bvanassche@acm.org>
 <3f83312b-7896-54d9-1a7b-a3abacc04e46@oracle.com>
From:   Bart Van Assche <bvanassche@acm.org>
Message-ID: <1fa3ad06-0b4c-e1e0-ffc9-2390b84584da@acm.org>
Date:   Tue, 2 Apr 2019 18:05:20 -0700
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On 4/2/19 6:02 PM, Dongli Zhang wrote:
> I used to see the removal of above in one of Jianchao's patchset.
> 
> https://lore.kernel.org/patchwork/patch/1051047/

Thanks for the feedback. But it seems like the q->mq_freeze_depth test 
is missing from Jianchao's patch ...

Bart.