On 09/22/2009 12:37 PM, Arjan van de Ven wrote:
On Tue, 22 Sep 2009 12:25:33 +0300
Avi Kivity<avi@xxxxxxxxxx> wrote:
On 09/19/2009 09:40 AM, Avi Kivity wrote:
Add a general per-cpu notifier that is called whenever the kernel is
about to return to userspace. The notifier uses a thread_info flag
and existing checks, so there is no impact on user return or context
switch fast paths.
Ingo/Peter?
isn't this like really expensive when used ?
No, why? It triggers a call to do_notify_resume() and a walks a list of
length 1.
--
error compiling committee.c: too many arguments to function
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