From: Rusty Russell <rusty@rustcorp.com.au>
To: Ohad Ben-Cohen <ohad@wizery.com>,
Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
virtualization <virtualization@lists.linux-foundation.org>,
linux-arm <linux-arm-kernel@lists.infradead.org>
Subject: Re: [RESENDx2] [PULL] virtio: fix barriers for virtio-mmio
Date: Sat, 24 Dec 2011 13:31:14 +1030 [thread overview]
Message-ID: <87pqfeisg5.fsf@rustcorp.com.au> (raw)
In-Reply-To: <CAK=WgbacH1tXHJiHNKLNNsFA7-vnFT_J6vYOANh0wzGyUj8Zpg@mail.gmail.com>
On Fri, 23 Dec 2011 13:35:26 +0200, Ohad Ben-Cohen <ohad@wizery.com> wrote:
> On Fri, Dec 23, 2011 at 11:35 AM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> > On x86, there really is never any reason to use the heavy memory
> > barriers unless you are talking to a real device. And last I saw,
> > "virtio" was still about virtual IO.
Not any more, as the commit message describes.
But I missed that they're using rpmsg, which isn't merged yet.
Sorry for the noise,
Rusty.
PS. Switching barriers by bus type is too crude anyway, let's come up
with something better...
next prev parent reply other threads:[~2011-12-24 3:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-23 5:16 [RESENDx2] [PULL] virtio: fix barriers for virtio-mmio Rusty Russell
2011-12-23 9:31 ` Linus Torvalds
2011-12-23 9:35 ` Linus Torvalds
2011-12-23 11:35 ` Ohad Ben-Cohen
2011-12-24 3:01 ` Rusty Russell [this message]
2011-12-29 4:31 ` Rusty Russell
2011-12-29 6:53 ` Ohad Ben-Cohen
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