[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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

To: Juergen Gross <jgross@xxxxxxxx>
From: Jan Beulich <jbeulich@xxxxxxxx>
Date: Mon, 17 May 2021 15:50:43 +0200
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
Delivery-date: Mon, 17 May 2021 13:50:48 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

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@xxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

References:
- [PATCH 0/8] xen: harden frontends against malicious backends
  - From: Juergen Gross
- [PATCH 2/8] xen/blkfront: read response from backend only once
  - From: Juergen Gross

Prev by Date: Re: [PATCH v2 1/4] usb: early: Avoid using DbC if already enabled
Next by Date: [xtf test] 161978: all pass - PUSHED
Previous by thread: [PATCH 2/8] xen/blkfront: read response from backend only once
Next by thread: [PATCH 1/8] xen: sync include/xen/interface/io/ring.h with Xen's newest version
Index(es):
- Date
- Thread

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.