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-rw-r--r--arch/x86/events/core.c1
-rw-r--r--arch/x86/events/intel/lbr.c1
-rw-r--r--include/linux/perf_event.h4
-rw-r--r--kernel/events/core.c4
4 files changed, 1 insertions, 9 deletions
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index d740c861724c..6b1228ae007d 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2371,7 +2371,6 @@ static struct pmu pmu = {
.event_idx = x86_pmu_event_idx,
.sched_task = x86_pmu_sched_task,
- .task_ctx_size = sizeof(struct x86_perf_task_context),
.swap_task_ctx = x86_pmu_swap_task_ctx,
.check_period = x86_pmu_check_period,
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index e784c1d485ca..3ad528996d1c 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -1672,7 +1672,6 @@ void __init intel_pmu_arch_lbr_init(void)
size = sizeof(struct x86_perf_task_context_arch_lbr) +
lbr_nr * sizeof(struct lbr_entry);
- x86_get_pmu()->task_ctx_size = size;
x86_get_pmu()->task_ctx_cache = create_lbr_kmem_cache(size, 0);
x86_pmu.lbr_from = MSR_ARCH_LBR_FROM_0;
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 09915ae06d28..3b22db08b6fb 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -419,10 +419,6 @@ struct pmu {
*/
void (*sched_task) (struct perf_event_context *ctx,
bool sched_in);
- /*
- * PMU specific data size
- */
- size_t task_ctx_size;
/*
* Kmem cache of PMU specific data
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 30d9b3182369..7c436d705fbd 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1243,15 +1243,13 @@ static void *alloc_task_ctx_data(struct pmu *pmu)
if (pmu->task_ctx_cache)
return kmem_cache_zalloc(pmu->task_ctx_cache, GFP_KERNEL);
- return kzalloc(pmu->task_ctx_size, GFP_KERNEL);
+ return NULL;
}
static void free_task_ctx_data(struct pmu *pmu, void *task_ctx_data)
{
if (pmu->task_ctx_cache && task_ctx_data)
kmem_cache_free(pmu->task_ctx_cache, task_ctx_data);
- else
- kfree(task_ctx_data);
}
static void free_ctx(struct rcu_head *head)