Messages in this thread | | | Date | Fri, 2 Aug 2013 15:06:41 +0530 | Subject | Re: [Update][PATCH] cpufreq: Do not hold driver module references for additional policy CPUs | From | Viresh Kumar <> |
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On 2 August 2013 12:19, Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> wrote: > On 08/02/2013 10:07 AM, Viresh Kumar wrote: >> So, we can't rmmod the module as soon as it is inserted and so the >> problem stays as is. :( >> > > No, we get one step closer to the solution, since we fix the inconsistency > between refcounts. Next step would be to get rid of refcounts and use > locking like you suggested. Then we can rmmod it easily. I'm assuming > Rafael has the same plan.
Not really. We are putting the reference at the end of add_dev() and so refcount would be zero when we aren't running any critical sections. And so, we can rmmod the module now and that problem is gone.
@Rafael: I will try to do generic cleanups in cpufreq in coming time and will take care to remove .owner field completely in that. Until that point your patches look fine:
For both of your patches: Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
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