linux-kernel - Re: Missing put_cpu() in arch/ia64/sn/kernel/sn2/sn

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Message-ID: <4E4372DD.6020603@redhat.com>
Date:	Thu, 11 Aug 2011 08:12:45 +0200
From:	Jes Sorensen <Jes.Sorensen@...hat.com>
To:	Tony Luck <tony.luck@...el.com>
CC:	Thomas Meyer <thomas@...3r.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Julia Lawall <julia@...u.dk>
Subject: Re: Missing put_cpu() in arch/ia64/sn/kernel/sn2/sn_hwperf.c?

On 08/08/11 23:37, Tony Luck wrote:
> On Mon, Aug 8, 2011 at 11:05 AM, Thomas Meyer <thomas@...3r.de> wrote:
>> The function sn_hwperf_op_cpu() seems to miss a corresponding put_cpu().
>>
>> Or is this done in another function? I didn't find it.
> 
> It would be hard to do it elsewhere - this function may not have done
> a get_cpu() [in the cpu == SN_HWPERF_ARG_ANY_CPU case].
> 
> The logic is a bit tortuous here ... perhaps simpler to split the tests
> up.  Does the attached patch look right?

Hi Tony,

You probably want someone from SGI to look at it, so I'll forward to
Robin Holt.

I haven't been at SGI for about 2 years now :)

Cheers,
Jes
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