[PATCH v3 3/8] perf: Add a flags parameter to pmu txn interfaces

[Sukadev Bhattiprolu]

Peter Zijlstra [peterz at infradead.org] wrote:
| On Tue, Jul 14, 2015 at 08:01:50PM -0700, Sukadev Bhattiprolu wrote:
| > @@ -1604,6 +1613,12 @@ static void power_pmu_start_txn(struct pmu *pmu)
| >  static void power_pmu_cancel_txn(struct pmu *pmu)
| >  {
| >  	struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
| > +	int txn_flags;
| > +
| > +	txn_flags = cpuhw->txn_flags;
| > +	cpuhw->txn_flags = 0;
| > +	if (cpuhw->txn_flags & ~PERF_PMU_TXN_ADD)
| > +		return;
| 
| That seems, unintentional? ;-)

Argh. Thanks for catching it.

Sukadev