Re: [PATCH v2] core, x86: Add user return notifiers

[Ingo Molnar]

* 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?

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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