Re: [PATCH] perf_events: improve x86 event scheduling (v5)

[Peter Zijlstra]

On Mon, 2010-01-18 at 15:45 +0100, Frederic Weisbecker wrote:
> 
> > > That requires to know in advance if we have hardware pmu
> > > in the list though (can be a flag in the group).
> > 
> > Good point, but your proposed hw_check_constraint() call needs to know
> > the exact same.
> 
> 
> True. Whatever model we use anyway, both implement the same idea.

Hmm, we seem to already have that problem (which would indicate another
bug in the hw-breakpoint stuff), how do you deal with
hw_perf_{enable,disable}() for the breakpoints?

We could fix this by making these pmu state functions into a callback
list visiting all registered PMUs.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/