linux-kernel - Re: [PATCH] virtio: drop a useless config read

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Date:	Wed, 01 Apr 2015 13:44:49 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Cornelia Huck <cornelia.huck@...ibm.com>,
	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH] virtio: drop a useless config read

Cornelia Huck <cornelia.huck@...ibm.com> writes:
> On Tue, 31 Mar 2015 13:55:42 +0200
> "Michael S. Tsirkin" <mst@...hat.com> wrote:
>
>> commit d71de9ec6ba806104439d3a669befda84757b5af
>>     "virtio: core support for config generation"
>> fixed reading up 64 bit values, adding generation
>> checks for such reads.
>> 
>> By mistake, it left an explicit get call in place
>> as well. the result is that the value is read twice,
>> the first result is discarded.
>> 
>> Not a big deal since this only happens with virtio
>> blk and only on boot ATM, so performance isn't
>> affected, but let's clean it up.
>> 
>> Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
>> ---
>>  include/linux/virtio_config.h | 1 -
>>  1 file changed, 1 deletion(-)
>
> Reviewed-by: Cornelia Huck <cornelia.huck@...ibm.com>

Applied.

Thanks!
Rusty.
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