[PATCH] perf/x86/intel/uncore: don't use smp_processor_id() in validate_group()

From: Yan, Zheng
Date: Tue Sep 17 2013 - 02:48:23 EST


From: "Yan, Zheng" <zheng.z.yan@xxxxxxxxx>

uncore_validate_group() can't call smp_processor_id() because it is
in preemptible context. Pass NUMA_NO_NODE to the allocator instead.

Signed-off-by: Yan, Zheng <zheng.z.yan@xxxxxxxxx>
---
arch/x86/kernel/cpu/perf_event_intel_uncore.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index fd8011e..11b1582 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -3031,7 +3031,7 @@ static int uncore_validate_group(struct intel_uncore_pmu *pmu,
struct intel_uncore_box *fake_box;
int ret = -EINVAL, n;

- fake_box = uncore_alloc_box(pmu->type, smp_processor_id());
+ fake_box = uncore_alloc_box(pmu->type, NUMA_NO_NODE);
if (!fake_box)
return -ENOMEM;

--
1.8.1.4

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