linux-kernel - Re: [PATCH] virtio-blk: add back VIRTIO_BLK_F

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Date:	Mon, 09 Jul 2012 09:41:50 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Paolo Bonzini <pbonzini@...hat.com>, linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org, kvm@...r.kernel.org
Cc:	levinsasha928@...il.com, "Michael S. Tsirkin" <mst@...hat.com>
Subject: Re: [PATCH] virtio-blk: add back VIRTIO_BLK_F_FLUSH

On Thu,  5 Jul 2012 12:08:22 +0200, Paolo Bonzini <pbonzini@...hat.com> wrote:
> The old name is part of the userspace API, add it back for compatibility.
> 
> Reported-by: Sasha Levin <levinsasha928@...il.com>
> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
> ---
>  include/linux/virtio_blk.h |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
> index 18a1027..83a3116 100644
> --- a/include/linux/virtio_blk.h
> +++ b/include/linux/virtio_blk.h
> @@ -41,6 +41,9 @@
>  #define VIRTIO_BLK_F_TOPOLOGY	10	/* Topology information is available */
>  #define VIRTIO_BLK_F_CONFIG_WCE	11	/* Writeback mode available in config */
>  
> +/* Backwards-compatibility #defines for renamed features.  */
> +#define VIRTIO_BLK_F_FLUSH	VIRTIO_BLK_F_WCE

Please #ifndef __KERNEL__?

Thanks,
Rusty.
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