Messages in this thread Patch in this message | | | From | Anju T Sudhakar <> | Subject | [PATCH] powerpc/perf: Fix for core/nest imc call trace on cpuhotplug | Date | Mon, 11 Sep 2017 23:02:14 +0530 |
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Nest/core pmu units are enabled only when it is used. A reference count is maintained for the events which uses the nest/core pmu units. Currently in *_imc_counters_release function a WARN() is used for notification of any underflow of ref count. Replace WARN() with a pr_info since it is an overkill.
Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com> Acked-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> --- arch/powerpc/perf/imc-pmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c index 9ccac86..4d523d0 100644 --- a/arch/powerpc/perf/imc-pmu.c +++ b/arch/powerpc/perf/imc-pmu.c @@ -409,7 +409,7 @@ static void nest_imc_counters_release(struct perf_event *event) return; } } else if (ref->refc < 0) { - WARN(1, "nest-imc: Invalid event reference count\n"); + pr_info("nest-imc: Invalid event reference count\n"); ref->refc = 0; } mutex_unlock(&ref->lock); @@ -656,7 +656,7 @@ static void core_imc_counters_release(struct perf_event *event) return; } } else if (ref->refc < 0) { - WARN(1, "core-imc: Invalid event reference count\n"); + pr_info("core-imc: Invalid event reference count\n"); ref->refc = 0; } mutex_unlock(&ref->lock); -- 2.7.4
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