linux-kernel - Re: [PATCH 2/8] xen/blkfront: read response from backend only once

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Message-ID: <8bc3e4e7-a93f-cd8c-3f96-3a8caea38ed3@suse.com>
Date:   Mon, 17 May 2021 15:50:43 +0200
From:   Jan Beulich <jbeulich@...e.com>
To:     Juergen Gross <jgross@...e.com>
Cc:     Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Roger Pau Monné <roger.pau@...rix.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/8] xen/blkfront: read response from backend only once

On 13.05.2021 12:02, Juergen Gross wrote:
> In order to avoid problems in case the backend is modifying a response
> on the ring page while the frontend has already seen it, just read the
> response into a local buffer in one go and then operate on that buffer
> only.
> 
> Signed-off-by: Juergen Gross <jgross@...e.com>

Reviewed-by: Jan Beulich <jbeulich@...e.com>