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From: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
To: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: ralf@linux-mips.org, a.p.zijlstra@chello.nl, fweisbec@gmail.com,
	will.deacon@arm.com, linux-mips@linux-mips.org,
	linux-kernel@vger.kernel.org, wuzhangjin@gmail.com,
	paulus@samba.org, mingo@elte.hu, acme@redhat.com,
	matt@console-pimps.org, ddaney@caviumnetworks.com
Subject: Re: [PATCH v4 3/5] MIPS/Perf-events: Fix event check in validate_event()
Date: Mon, 24 Jan 2011 15:38:34 +0800	[thread overview]
Message-ID: <AANLkTin34=STRp+xstbvwD5W2scEfZj5Fjf0L7F=oo4j@mail.gmail.com> (raw)
In-Reply-To: <4D396AAF.6080603@mvista.com>

Thanks. The patch set was resent.


Deng-Cheng

2011/1/21 Sergei Shtylyov <sshtylyov@mvista.com>:
> Hello.
>
> On 21-01-2011 11:19, Deng-Cheng Zhu wrote:
>
>> Ignore events that are in off/error state or belong to a different PMU.
>
>> This patch originates from the following commit for ARM by Will Deacon:
>
>> - 65b4711ff513767341aa1915c822de6ec0de65cb
>>     ARM: 6352/1: perf: fix event validation
>
>>     The validate_event function in the ARM perf events backend has the
>>     following problems:
>
>>     1.) Events that are disabled count towards the cost.
>>     2.) Events associated with other PMUs [for example, software events or
>>         breakpoints] do not count towards the cost, but do fail
>> validation,
>>         causing the group to fail.
>
>>     This patch changes validate_event so that it ignores events in the
>>     PERF_EVENT_STATE_OFF state or that are scheduled for other PMUs.
>
>> Changes:
>> v4 - v3:
>> o None
>> v3 - v2:
>> o Keep all mentioned commits in the form of number + title + original
>> summary + (MIPS specific info when needed).
>> v2 - v1:
>> o Corrected the return value of the event check in validate_event().
>
>   The patch changes should follow the --- tearline, not precede it.
>
>> Acked-by: Will Deacon<will.deacon@arm.com>
>> Acked-by: David Daney<ddaney@caviumnetworks.com>
>> Signed-off-by: Deng-Cheng Zhu<dengcheng.zhu@gmail.com>
>> ---
>
> WBR, Sergei
>

  reply	other threads:[~2011-01-24  7:38 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-21  8:19 [PATCH v4 0/5] MIPS/Perf-events: Sync with mainline upper layer (v4) Deng-Cheng Zhu
2011-01-21  8:19 ` [PATCH v4 1/5] MIPS/Perf-events: Work with irq_work Deng-Cheng Zhu
2011-01-21  8:19 ` [PATCH v4 2/5] MIPS/Perf-events: Work with the new PMU interface Deng-Cheng Zhu
2011-01-21  8:19 ` [PATCH v4 3/5] MIPS/Perf-events: Fix event check in validate_event() Deng-Cheng Zhu
2011-01-21 11:14   ` Sergei Shtylyov
2011-01-24  7:38     ` Deng-Cheng Zhu [this message]
2011-01-21  8:19 ` [PATCH v4 4/5] MIPS/Perf-events: Work with the new callchain interface Deng-Cheng Zhu
2011-01-21  8:19 ` [PATCH v4 5/5] MIPS/Perf-events: Use unsigned delta for right shift in event update Deng-Cheng Zhu

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