Re: [PATCH 6/6] x86: Allow disabling HW_BREAKPOINTS and PERF_EVENTS

From: Frederic Weisbecker
Date: Tue Oct 08 2013 - 16:35:38 EST


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.
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