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From: Rusty Russell <rusty@rustcorp.com.au>
To: Christoph Hellwig <hch@lst.de>
Cc: kvm@vger.kernel.org, Christian Borntraeger <borntraeger@de.ibm.com>
Subject: Re: [PATCH, RFC] virtio_blk: add cache flush command
Date: Tue, 12 May 2009 23:24:14 +0930	[thread overview]
Message-ID: <200905122324.14970.rusty@rustcorp.com.au> (raw)
In-Reply-To: <20090511083908.GB20082@lst.de>

On Mon, 11 May 2009 06:09:08 pm Christoph Hellwig wrote:
> Do we need a new feature flag for this command or can we expect that
> all previous barrier support was buggy enough anyway?

You mean reuse the VIRTIO_BLK_F_BARRIER for this as well?  Seems fine.

AFAIK only lguest offered that, and lguest has no ABI.  Best would be to 
implement VIRTIO_BLK_T_FLUSH as well; it's supposed to be demo code, and it 
should be easy).

Thanks,
Rusty.

  parent reply	other threads:[~2009-05-12 13:54 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-11  8:39 [PATCH, RFC] virtio_blk: add cache flush command Christoph Hellwig
2009-05-11 14:51 ` Anthony Liguori
2009-05-11 15:40   ` Christoph Hellwig
2009-05-11 15:45     ` Avi Kivity
2009-05-11 16:28       ` Christoph Hellwig
2009-05-11 16:49         ` Avi Kivity
2009-05-11 17:47           ` Anthony Liguori
2009-05-11 18:00             ` Avi Kivity
2009-05-11 18:29               ` Anthony Liguori
2009-05-11 18:40                 ` Avi Kivity
2009-05-18 12:03                 ` Christoph Hellwig
2009-05-12  7:23             ` Christoph Hellwig
2009-05-12  7:19           ` Christoph Hellwig
2009-05-12  8:35             ` Avi Kivity
2009-05-18 12:06               ` Christoph Hellwig
2009-05-11 16:38     ` Anthony Liguori
2009-05-12  7:26       ` Christoph Hellwig
2009-05-12 13:54 ` Rusty Russell [this message]
2009-05-12 14:18   ` Christian Borntraeger
2009-05-13  1:52     ` Rusty Russell
2009-05-18 12:07     ` Christoph Hellwig

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