linux-kernel - Re: [RFC PATCH v3 2/3] blk-mq: Freeze and quiesce all queues for tagset in elevator

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Message-ID: <4bd89a91-ca98-9c22-e01b-9fb7936623cd@acm.org>
Date:   Fri, 19 Mar 2021 11:32:25 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     John Garry <john.garry@...wei.com>, Ming Lei <ming.lei@...hat.com>
Cc:     "hare@...e.de" <hare@...e.de>, "axboe@...nel.dk" <axboe@...nel.dk>,
        "hch@....de" <hch@....de>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "pragalla@...eaurora.org" <pragalla@...eaurora.org>,
        "kashyap.desai@...adcom.com" <kashyap.desai@...adcom.com>,
        yuyufen <yuyufen@...wei.com>
Subject: Re: [RFC PATCH v3 2/3] blk-mq: Freeze and quiesce all queues for
 tagset in elevator_exit()

On 3/19/21 11:19 AM, John Garry wrote:
> OK, but TBH, I am not so familiar with srcu - where you going to try this?

Hi John,

Have you received the following patch: "[PATCH] blk-mq: Fix races 
between iterating over requests and freeing requests" 
(https://lore.kernel.org/linux-block/20210319010009.10041-1-bvanassche@acm.org/)?

Thanks,

Bart.