linux-kernel - Re: [PATCH v6 3/6] block: revert back to synchronous request

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Message-ID: <20200619202348.GJ11244@42.do-not-panic.com>
Date:   Fri, 19 Jun 2020 20:23:48 +0000
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     Bart Van Assche <bvanassche@....org>
Cc:     axboe@...nel.dk, viro@...iv.linux.org.uk,
        gregkh@...uxfoundation.org, rostedt@...dmis.org, mingo@...hat.com,
        jack@...e.cz, ming.lei@...hat.com, nstange@...e.de,
        akpm@...ux-foundation.org, mhocko@...e.com, yukuai3@...wei.com,
        martin.petersen@...cle.com, jejb@...ux.ibm.com,
        linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Omar Sandoval <osandov@...com>,
        Hannes Reinecke <hare@...e.com>,
        Michal Hocko <mhocko@...nel.org>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v6 3/6] block: revert back to synchronous request_queue
 removal

On Fri, Jun 12, 2020 at 06:53:40PM -0700, Bart Van Assche wrote:
> On 2020-06-08 10:01, Luis Chamberlain wrote:
> > + * Drivers exist which depend on the release of the request_queue to be
> > + * synchronous, it should not be deferred.
> 
> This sounds mysterious. Which drivers? Why do these depend on this
> function being synchronous?

Sorry that should be "Userspace can exist". I've fixed that.

> Anyway:
> 
> Reviewed-by: Bart Van Assche <bvanassche@....org>

  Luis