From: Sasha Levin <levinsasha928@gmail.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-kernel@vger.kernel.org, rusty@rustcorp.com.au, kvm@vger.kernel.org
Subject: Re: [PATCH] virtio-blk: allow toggling host cache between writeback and writethrough
Date: Wed, 04 Jul 2012 18:26:57 +0200 [thread overview]
Message-ID: <1341419217.18786.3.camel@lappy> (raw)
In-Reply-To: <1341321577-24435-1-git-send-email-pbonzini@redhat.com>
On Tue, 2012-07-03 at 15:19 +0200, Paolo Bonzini wrote:
> diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
> index e0edb40..18a1027 100644
> --- a/include/linux/virtio_blk.h
> +++ b/include/linux/virtio_blk.h
> @@ -37,8 +37,9 @@
> #define VIRTIO_BLK_F_RO 5 /* Disk is read-only */
> #define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available*/
> #define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */
> -#define VIRTIO_BLK_F_FLUSH 9 /* Cache flush command support */
> +#define VIRTIO_BLK_F_WCE 9 /* Writeback mode enabled after reset */
> #define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */
> +#define VIRTIO_BLK_F_CONFIG_WCE 11 /* Writeback mode available in config */
Wouldn't this change break any usermode code that implements virtio-blk?
next prev parent reply other threads:[~2012-07-04 16:26 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-03 13:19 [PATCH] virtio-blk: allow toggling host cache between writeback and writethrough Paolo Bonzini
2012-07-04 5:55 ` Rusty Russell
2012-07-04 6:24 ` Rusty Russell
2012-07-04 15:13 ` Michael S. Tsirkin
2012-07-04 15:42 ` Michael S. Tsirkin
2012-07-04 15:54 ` Paolo Bonzini
2012-07-04 16:02 ` Michael S. Tsirkin
2012-07-04 16:08 ` Paolo Bonzini
2012-07-04 21:30 ` Michael S. Tsirkin
2012-07-05 6:45 ` Paolo Bonzini
2012-07-04 16:26 ` Sasha Levin [this message]
2012-07-04 16:32 ` Paolo Bonzini
2012-07-04 21:11 ` Sasha Levin
2012-07-05 6:47 ` Paolo Bonzini
2012-07-05 7:02 ` Sasha Levin
2012-07-08 23:45 ` Rusty Russell
2012-07-25 1:02 ` Rusty Russell
2012-07-05 18:39 ` Badari Pulavarty
2012-07-06 6:47 ` Paolo Bonzini
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