Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 22 Sep 2009 16:32:23 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH v2] core, x86: Add user return notifiers |
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* Avi Kivity <avi@redhat.com> 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?
Would be nice to convert some existing open-coded return-to-user-space logic to this facility. One such candidate would be lockdep_sys_exit?
Ingo
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