From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Juergen Gross <jgross@suse.com>
Cc: <xen-devel@lists.xenproject.org>, <linux-block@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Jens Axboe <axboe@kernel.dk>, Jan Beulich <jbeulich@suse.com>
Subject: Re: [PATCH v2 1/3] xen/blkfront: read response from backend only once
Date: Fri, 9 Jul 2021 10:33:24 +0200 [thread overview]
Message-ID: <YOgJ1GZFoKhRPHLX@Air-de-Roger> (raw)
In-Reply-To: <20210708124345.10173-2-jgross@suse.com>
On Thu, Jul 08, 2021 at 02:43:43PM +0200, 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@suse.com>
> Reviewed-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Thanks, Roger.
next prev parent reply other threads:[~2021-07-09 8:33 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-08 12:43 [PATCH v2 0/3] xen: harden blkfront against malicious backends Juergen Gross
2021-07-08 12:43 ` [PATCH v2 1/3] xen/blkfront: read response from backend only once Juergen Gross
2021-07-09 8:33 ` Roger Pau Monné [this message]
2021-07-08 12:43 ` [PATCH v2 2/3] xen/blkfront: don't take local copy of a request from the ring page Juergen Gross
2021-07-09 8:55 ` Roger Pau Monné
2021-07-09 13:54 ` Juergen Gross
2021-07-08 12:43 ` [PATCH v2 3/3] xen/blkfront: don't trust the backend response data blindly Juergen Gross
2021-07-08 13:11 ` Jan Beulich
2021-07-08 13:14 ` Juergen Gross
2021-07-09 9:42 ` Roger Pau Monné
2021-07-09 13:58 ` Juergen Gross
2021-07-09 11:09 ` kernel test robot
2021-07-30 10:08 ` Juergen Gross
2021-07-30 10:31 ` Juergen Gross
2021-07-08 14:22 ` [PATCH v2 0/3] xen: harden blkfront against malicious backends Konrad Rzeszutek Wilk
2021-07-08 14:39 ` Juergen Gross
2021-07-10 1:18 ` Marek Marczykowski-Górecki
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