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@@ -3374,15 +3374,10 @@ static void perf_event_comm_ctx(struct perf_event_context *ctx,
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{
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struct perf_event *event;
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- if (system_state != SYSTEM_RUNNING || list_empty(&ctx->event_list))
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- return;
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-
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- rcu_read_lock();
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list_for_each_entry_rcu(event, &ctx->event_list, event_entry) {
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if (perf_event_comm_match(event))
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perf_event_comm_output(event, comm_event);
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}
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- rcu_read_unlock();
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}
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static void perf_event_comm_event(struct perf_comm_event *comm_event)
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@@ -3401,11 +3396,11 @@ static void perf_event_comm_event(struct perf_comm_event *comm_event)
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comm_event->event_id.header.size = sizeof(comm_event->event_id) + size;
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+ rcu_read_lock();
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cpuctx = &get_cpu_var(perf_cpu_context);
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perf_event_comm_ctx(&cpuctx->ctx, comm_event);
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put_cpu_var(perf_cpu_context);
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- rcu_read_lock();
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/*
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* doesn't really matter which of the child contexts the
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* events ends up in.
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