Merge branch 'merge' into next

Brings in various bug fixes from 3.6-rcX

arch/powerpc/perf/core-book3s.c

@@ -1431,7 +1431,7 @@ static void perf_event_interrupt(struct pt_regs *regs)
 		if (!event->hw.idx || is_limited_pmc(event->hw.idx))
 			continue;
 		val = read_pmc(event->hw.idx);
-		if ((int)val < 0) {
+		if (pmc_overflow(val)) {
 			/* event has overflowed */
 			found = 1;
 			record_and_restart(event, val, regs);