Commit-ID: 917bdd1c9b7b0f4c22f2504c2f0c1074c8ab9df7
Gitweb: http://git.kernel.org/tip/917bdd1c9b7b0f4c22f2504c2f0c1074c8ab9df7
Author: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
AuthorDate: Fri, 17 Sep 2010 11:28:49 +0200
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Fri, 17 Sep 2010 12:48:48 +0200
perf: Fix perf_event_exit_cpu_context()
Use the right cpu-context.. spotted by preempt warning on
hot-unplug
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Robert Richter <robert.richter@xxxxxxx>
LKML-Reference: <20100917093009.461794357@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
kernel/perf_event.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 6d7eef5..27332e5 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -6269,14 +6269,13 @@ static void perf_event_exit_cpu_context(int cpu)
idx = srcu_read_lock(&pmus_srcu);
list_for_each_entry_rcu(pmu, &pmus, entry) {
- ctx = &this_cpu_ptr(pmu->pmu_cpu_context)->ctx;
+ ctx = &per_cpu_ptr(pmu->pmu_cpu_context, cpu)->ctx;
mutex_lock(&ctx->mutex);
smp_call_function_single(cpu, __perf_event_exit_context, ctx, 1);
mutex_unlock(&ctx->mutex);
}
srcu_read_unlock(&pmus_srcu, idx);
-
}
static void perf_event_exit_cpu(int cpu)
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|