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SubjectRe: Question about barriers for ARM on tools/perf/
Em Fri, May 08, 2015 at 11:37:29AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Fri, May 08, 2015 at 04:25:13PM +0200, Peter Zijlstra escreveu:
> > He wants to do smp refcounting, which needs atomic_inc() /
> > atomic_inc_non_zero() / atomic_dec_return() etc..

> Right, Will concentrated on what we use those barriers for right now in
> tools/perf.

So, for reference, and this just moves what was already in
tools/perf/perf-sys.h to a place that is named as the kernel is and when
what was used in perf-sys.h is the same as in the kernel, uses the same
kernel source excerpts:

- Arnaldo

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