From: "Michael S. Tsirkin" <mst@redhat.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, mingo@elte.hu, linux-mm@kvack.org,
akpm@linux-foundation.org, hpa@zytor.com,
gregory.haskins@gmail.com
Subject: Re: [PATCHv4 2/2] vhost_net: a kernel-level virtio server
Date: Thu, 27 Aug 2009 13:45:18 +0300 [thread overview]
Message-ID: <20090827104517.GB8545@redhat.com> (raw)
In-Reply-To: <200908252140.41295.rusty@rustcorp.com.au>
On Tue, Aug 25, 2009 at 09:40:40PM +0930, Rusty Russell wrote:
> Also, see other fixes to the lguest launcher since then which might
> be relevant to this code:
> lguest: get more serious about wmb() in example Launcher code
Heh, this just gets one step closer to a real wmb. I just used the
correct code from linux, so I think nothing needs to be done in vhost.
Apropos this change in lguest: why is a compiler barrier sufficient? The
comment says devices are run in separate threads (presumably from
guest?), if so don't you need to tell CPU that there's a barrier as
well?
> lguest: clean up length-used value in example launcher
OK, fixing that.
Thanks!
--
MST
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next prev parent reply other threads:[~2009-08-27 10:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1250693417.git.mst@redhat.com>
2009-08-19 15:02 ` [PATCHv4 1/2] mm: export use_mm/unuse_mm to modules Michael S. Tsirkin
2009-08-19 15:03 ` [PATCHv4 2/2] vhost_net: a kernel-level virtio server Michael S. Tsirkin
2009-08-25 12:10 ` Rusty Russell
2009-08-25 13:16 ` Michael S. Tsirkin
2009-08-26 16:56 ` Michael S. Tsirkin
2009-08-27 9:59 ` Rusty Russell
2009-08-25 17:50 ` Michael S. Tsirkin
2009-08-26 13:40 ` Arnd Bergmann
2009-08-26 13:58 ` Michael S. Tsirkin
2009-08-27 10:10 ` Michael S. Tsirkin
2009-08-27 11:03 ` Rusty Russell
2009-08-27 10:45 ` Michael S. Tsirkin [this message]
2009-08-27 11:10 ` Rusty Russell
2009-08-27 11:19 ` Michael S. Tsirkin
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