Hello,
On Mon, Mar 22, 2021 at 3:14 PM Like Xu <like...@linux.intel.com> wrote:
> +void reserve_lbr_buffers(struct perf_event *event)
> +{
> + struct kmem_cache *kmem_cache = x86_get_pmu()->task_ctx_cache;
> + struct cpu_hw_events *cpuc;
> + int cpu;
> +
> + if (!static_cpu_has(X86_FEATURE_ARCH_LBR))
> + return;
> +
> + for_each_possible_cpu(cpu) {
> + cpuc = per_cpu_ptr(&cpu_hw_events, cpu);
> + if (kmem_cache && !cpuc->lbr_xsave && !event->attr.precise_ip)
> + cpuc->lbr_xsave = kmem_cache_alloc(kmem_cache,
> GFP_KERNEL);
> + }
> +}
I think we should use kmem_cache_alloc_node().
Thanks,
Namhyung
