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- "Yan, Zheng"
- "Yan, Zheng"
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- "Yan, Zheng"
- "Yan, Zheng"
- "Yan, Zheng"
- "Yan, Zheng"
- "Yan, Zheng"
- "Yan, Zheng"
- "Yan, Zheng"
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- "Yan, Zheng"
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Patch in this message | | | From | "Yan, Zheng" <> | Subject | [PATCH 07/15] perf, core: Always swtich pmu specific data during context switch | Date | Wed, 11 Dec 2013 15:10:52 +0800 |
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From: "Yan, Zheng" <zheng.z.yan@intel.com>
Swtich pmu specific data even if switching perf task conext is optimized out.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> --- kernel/events/core.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/kernel/events/core.c b/kernel/events/core.c index 6499dae..974f7c7 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -2318,6 +2318,8 @@ 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->task_ctx_data = xchg(&next_ctx->task_ctx_data, + ctx->task_ctx_data); do_switch = 0; perf_event_sync_stat(ctx, next_ctx); -- 1.8.1.4
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