perf_counter, x86: make x86_pmu_read() static inline

[ Impact: micro-optimization ]
Signed-off-by: NRobert Richter <robert.richter@amd.com>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1241002046-8832-18-git-send-email-robert.richter@amd.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/cpu/perf_counter.c

@@ -1002,7 +1002,7 @@ void __init init_hw_perf_counters(void)
 	register_die_notifier(&perf_counter_nmi_notifier);
 }
 
-static void x86_pmu_read(struct perf_counter *counter)
+static inline void x86_pmu_read(struct perf_counter *counter)
 {
 	x86_perf_counter_update(counter, &counter->hw, counter->hw.idx);
 }