linux-kernel - Re: [PATCH v3 0/3] xen-blk(back|front): Let users disable persistent grants

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Date:   Tue, 22 Sep 2020 16:45:56 +0200
From:   Roger Pau Monné <roger.pau@...rix.com>
To:     SeongJae Park <sjpark@...zon.com>
CC:     <konrad.wilk@...cle.com>, <jgross@...e.com>,
        SeongJae Park <sjpark@...zon.de>, <axboe@...nel.dk>,
        <aliguori@...zon.com>, <amit@...nel.org>, <mheyne@...zon.de>,
        <pdurrant@...zon.co.uk>, <linux-block@...r.kernel.org>,
        <xen-devel@...ts.xenproject.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/3] xen-blk(back|front): Let users disable persistent
 grants

On Tue, Sep 22, 2020 at 04:15:46PM +0200, SeongJae Park wrote:
> From: SeongJae Park <sjpark@...zon.de>
> 
> Persistent grants feature provides high scalability.  On some small
> systems, however, it could incur data copy overheads[1] and thus it is
> required to be disabled.  But, there is no option to disable it.  For
> the reason, this commit adds module parameters for disabling of the
> feature.

With the changes requested by Jürgen you can add my:

Acked-by: Roger Pau Monné <roger.pau@...rix.com>

Thanks, Roger.