perf/x86: Remove redundant calls to perf_pmu_{dis|en}able()
perf_pmu_disable() is called before pmu->add() and perf_pmu_enable() is called afterwards. No need to call these inside of x86_pmu_add() as well. Signed-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Link: http://lkml.kernel.org/r/1424281543-67335-1-git-send-email-dsahern@gmail.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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