Re: [PATCH v4 3/5] MIPS/Perf-events: Fix event check in validate_event()
From: Deng-Cheng Zhu
Date: Mon Jan 24 2011 - 02:38:39 EST
Thanks. The patch set was resent.
2011/1/21 Sergei Shtylyov <sshtylyov@xxxxxxxxxx>:
> 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
>> 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.
>> 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@xxxxxxx>
>> Acked-by: David Daney<ddaney@xxxxxxxxxxxxxxxxxx>
>> Signed-off-by: Deng-Cheng Zhu<dengcheng.zhu@xxxxxxxxx>
> WBR, Sergei
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