linux-kernel - Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements

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Message-ID: <20160915122753.GA26310@infradead.org>
Date:   Thu, 15 Sep 2016 05:27:53 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Wouter Verhelst <w@...r.be>
Cc:     Christoph Hellwig <hch@...radead.org>,
        "nbd-general@...ts.sourceforge.net" 
        <nbd-general@...ts.sourceforge.net>, linux-block@...r.kernel.org,
        Josef Bacik <jbacik@...com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Markus Pargmann <mpa@...gutronix.de>, kernel-team@...com
Subject: Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements

On Thu, Sep 15, 2016 at 02:26:31PM +0200, Wouter Verhelst wrote:
> Yes. I think the kernel nbd driver should probably filter out FUA on
> READ. It has no meaning in the case of nbd, and whatever expectations
> the kernel may have cannot be provided for by nbd anyway.

The kernel never sets FUA on reads - I just pointed out that other
protocols have defined (although horrible) semantics for it.