Re: [PATCH V4 06/16] perf, core: always switch pmu specific data during context switch

[Peter Zijlstra]

On Mon, Jun 30, 2014 at 04:50:43PM +0800, Yan, Zheng wrote:
> @@ -2347,6 +2348,11 @@ static void perf_event_context_sched_out(struct task_struct *task, int ctxn,
>  			next->perf_event_ctxp[ctxn] = ctx;
>  			ctx->task = next;
>  			next_ctx->task = task;
> +
> +			ctx_data = next_ctx->task_ctx_data;
> +			next_ctx->task_ctx_data = ctx->task_ctx_data;
> +			ctx->task_ctx_data = ctx_data;
> +

		swap(ctx->task_ctx_data, next_ctx->task_ctx_data);

?

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