From: "Michael S. Tsirkin" <mst@redhat.com>
To: David Miller <davem@davemloft.net>
Cc: kvm@vger.kernel.org, virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] vhost: copy_from_user -> __copy_from_user
Date: Mon, 7 Mar 2011 08:30:15 +0200 [thread overview]
Message-ID: <20110307063014.GA11330@redhat.com> (raw)
In-Reply-To: <20110306.180339.193718218.davem@davemloft.net>
On Sun, Mar 06, 2011 at 06:03:39PM -0800, David Miller wrote:
> From: "Michael S. Tsirkin" <mst@redhat.com>
> Date: Sun, 6 Mar 2011 13:33:49 +0200
>
> > copy_from_user is pretty high on perf top profile,
> > replacing it with __copy_from_user helps.
> > It's also safe because we do access_ok checks during setup.
> >
> > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
>
> Is Rusty going to take this or should I?
Sorry about not making this clear. I'll give it a day or two for review
then put it on the vhost tree myself.
Thanks!
next prev parent reply other threads:[~2011-03-07 6:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-06 11:33 [PATCH] vhost: copy_from_user -> __copy_from_user Michael S. Tsirkin
2011-03-07 2:03 ` David Miller
2011-03-07 2:03 ` David Miller
2011-03-07 6:30 ` Michael S. Tsirkin [this message]
2011-03-07 6:30 ` Michael S. Tsirkin
-- strict thread matches above, loose matches on Subject: below --
2011-03-06 11:33 Michael S. Tsirkin
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