perf_counter: Fix atomic_set vs. atomic64_t type mismatch
authorPaul Mackerras <paulus@samba.org>
Sat, 13 Jun 2009 07:06:50 +0000 (17:06 +1000)
committerIngo Molnar <mingo@elte.hu>
Sat, 13 Jun 2009 10:58:24 +0000 (12:58 +0200)
Using atomic_set on an atomic64_t variable gives a compiler
warning on powerpc, and won't give the desired result at runtime.
This fixes an instance of this error in the perf_counter code.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <18995.20490.979429.244883@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/perf_counter.c

index 29b685f551aac6aa2f5bee8e1356755ae5627001..8d14a733f222b65e34ccefd671a10ff4e6afffcf 100644 (file)
@@ -1283,7 +1283,7 @@ static void perf_ctx_adjust_freq(struct perf_counter_context *ctx)
                if (!interrupts) {
                        perf_disable();
                        counter->pmu->disable(counter);
-                       atomic_set(&hwc->period_left, 0);
+                       atomic64_set(&hwc->period_left, 0);
                        counter->pmu->enable(counter);
                        perf_enable();
                }