* Frederic Weisbecker <fweis...@gmail.com> wrote:
> On Tue, Oct 08, 2013 at 10:05:21PM +0200, Peter Zijlstra wrote:
> > On Tue, Oct 08, 2013 at 09:55:59PM +0200, Frederic Weisbecker wrote:
> > > 1) make breakpoints independant from perf. The drawback is that we must
> > > then
> > > add seperate hooks on context switch for ptrace breakpoints. OTOH we get
> > > rid of the perf -> breakpoint -> perf circular dependency, which is the
> > > very
> > > controversial thing.
> >
> > we used to have this in __switch_to_xtra(), right?
>
> Right.
>
> And then it got replaced by perf events scheduling.
Which we have anyway - so this moved complexity out the contex switch
path, for the common case where no hardware-breakpoints are used.
Thanks,
Ingo
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