linux-kernel - Re: [PATCH] virtio-blk: allow toggling host cache between writeback and writethrough

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Date:	Wed, 04 Jul 2012 15:25:38 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Paolo Bonzini <pbonzini@...hat.com>, linux-kernel@...r.kernel.org
Cc:	kvm@...r.kernel.org
Subject: Re: [PATCH] virtio-blk: allow toggling host cache between writeback and writethrough

On Tue,  3 Jul 2012 15:19:37 +0200, Paolo Bonzini <pbonzini@...hat.com> wrote:
> This patch adds support for the new VIRTIO_BLK_F_CONFIG_WCE feature,
> which exposes the cache mode in the configuration space and lets the
> driver modify it.  The cache mode is exposed via sysfs.
> 
> Even if the host does not support the new feature, the cache mode is
> visible (thanks to the existing VIRTIO_BLK_F_WCE), but not modifiable.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>

Applied, thanks!

Cheers,
Rusty.
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