Thread (3 messages) flat view 3 messages, 2 authors, 2011-03-07

Re: [PATCH] vhost: copy_from_user -> __copy_from_user

From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2011-03-07 06:30:30
Also in: kvm, lkml

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
quoted
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!
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