Messages in this thread | | | Date | Thu, 11 Aug 2011 05:58:29 -0500 | From | Robin Holt <> | Subject | Re: Missing put_cpu() in arch/ia64/sn/kernel/sn2/sn_hwperf.c? |
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On Thu, Aug 11, 2011 at 08:12:45AM +0200, Jes Sorensen wrote: > On 08/08/11 23:37, Tony Luck wrote: > > On Mon, Aug 8, 2011 at 11:05 AM, Thomas Meyer <thomas@m3y3r.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 :)
And I will bounce the question on to Jack. I believe he will probably pass it on to somebody more familiar with sn_hwperf. Tony's patch looks much clearer to me. I would have answered that I thought this was the right patch until I saw the '... else { put_cpu(); ...' which made me think we need a closer look.
Thanks, Robin
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