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From: Peter Zijlstra <peterz@infradead.org>
To: eranian@google.com
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, paulus@samba.org,
	davem@davemloft.net, fweisbec@gmail.com,
	perfmon2-devel@lists.sf.net, eranian@gmail.com,
	robert.richter@amd.com, acme@redhat.com, lizf@cn.fujitsu.com
Subject: Re: [PATCH 1/2] perf_events: add support for per-cpu per-cgroup monitoring (v5)
Date: Thu, 25 Nov 2010 12:20:33 +0100	[thread overview]
Message-ID: <1290684033.2145.25.camel@laptop> (raw)
In-Reply-To: <4ce510d4.0fedd80a.742c.10b9@mx.google.com>

On Thu, 2010-11-18 at 12:40 +0200, Stephane Eranian wrote:
> @@ -919,6 +945,10 @@ static inline void perf_event_task_sched_in(struct task_struct *task)
>  static inline
>  void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next)
>  {
> +#ifdef CONFIG_CGROUPS
> +       atomic_t *cgroup_events = &__get_cpu_var(perf_cgroup_events);
> +       COND_STMT(cgroup_events, perf_cgroup_switch(task, next));
> +#endif
>         COND_STMT(&perf_task_events, __perf_event_task_sched_out(task, next));
>  } 

I don't think that'll actually work, the jump label stuff needs a static
address.

Why not simply: s/perf_task_events/perf_sched_events/ and increment it
for cgroup events as well?



  reply	other threads:[~2010-11-25 11:20 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-18 10:40 [PATCH 1/2] perf_events: add support for per-cpu per-cgroup monitoring (v5) Stephane Eranian
2010-11-25 11:20 ` Peter Zijlstra [this message]
2010-11-25 14:53   ` Stephane Eranian
     [not found]   ` <AANLkTi=J8eRKjb8BBsDjaxnsvvuSLbZw2CN4k3YFGM+Y@mail.gmail.com>
2010-11-25 15:02     ` Peter Zijlstra
2010-11-25 21:32       ` Stephane Eranian
2010-11-26 11:16         ` Peter Zijlstra
2010-11-25 11:28 ` Peter Zijlstra
2010-11-26  1:50   ` Li Zefan
2010-11-26  2:56     ` Balbir Singh
2010-11-26  8:28       ` Li Zefan
2010-11-26 11:28         ` Peter Zijlstra
2010-11-26 11:17       ` Peter Zijlstra

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