Re: [PATCH 1/3] perf: add context field to perf_event

Frederic Weisbecker
2011-07-04T14:37:05Z

On Mon, Jul 04, 2011 at 05:10:20PM +0300, Avi Kivity wrote:
> On 07/04/2011 04:58 PM, Frederic Weisbecker wrote:
> >Another thing I would like to do in the even longer term is to not use perf anymore
> >for ptrace breakpoints, because that involves a heavy dependency and few people are
> >happy with that. Instead we should just have a generic hook into the sched_switch()
> >and handle pure ptrace breakpoints there. The central breakpoint API would still be
> >there to reserve/schedule breakpoint resources between ptrace and perf.
> >
>
> 'struct preempt_notifier' may be the hook you're looking for.

Yeah looks like a perfect fit as it's per task.

Thanks.