linux-kernel - Re: [ 84/95] virtio_blk: fix config handler race

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Message-ID: <87392qfw9u.fsf@rustcorp.com.au>
Date:	Mon, 10 Sep 2012 11:56:37 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Ben Hutchings <ben@...adent.org.uk>, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, "Michael S. Tsirkin" <mst@...hat.com>,
	Asias He <asias@...hat.com>
Subject: Re: [ 84/95] virtio_blk: fix config handler race

Ben Hutchings <ben@...adent.org.uk> writes:

> 3.2-stable review patch.  If anyone has any objections, please let me know.
>
> ------------------
>
> From: "Michael S. Tsirkin" <mst@...hat.com>
>
> commit 4678d6f970c2f7c0cbfefc0cc666432d153b321b upstream.
>
> Fix a theoretical race related to config work

???

>From Documentation/stable_kernel_rules.txt:

 - No "theoretical race condition" issues, unless an explanation of how the
   race can be exploited is also provided.

Similarly, '[ 85/95] virtio_blk: Drop unused request tracking list'
is a marginal perf improvement, why is it in there?

Neither of these were cc:stable; did someone request them specifically?

Confused,
Rusty.
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