Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH] cpufreq: prevent 'policy->cpus' become offline in __gov_queue_work() | Date | Wed, 05 Jun 2013 14:37:50 +0200 |
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On Wednesday, June 05, 2013 04:58:44 PM Michael Wang wrote: > Hi, Viresh > > On 06/05/2013 04:53 PM, Viresh Kumar wrote: > [snip] > >> It was caused by the policy->cpus changed during the process of > >> __gov_queue_work(), in other word, cpu offline happened. > >> > >> This patch will use get/put_online_cpus() to prevent the offline > >> happen inside __gov_queue_work(), after applied the patch, the > >> warning is gone as Jiri tested: > >> > >> Link: https://lkml.org/lkml/2013/6/5/88 > >> > >> CC: "Rafael J. Wysocki" <rjw@sisk.pl> > >> CC: Viresh Kumar <viresh.kumar@linaro.org> > >> Reported-by: Borislav Petkov <bp@alien8.de> > >> Reported-by: Jiri Kosina <jkosina@suse.cz> > >> Tested-by: Jiri Kosina <jkosina@suse.cz> > >> Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com> > >> --- > >> drivers/cpufreq/cpufreq_governor.c | 3 +++ > >> 1 files changed, 3 insertions(+), 0 deletions(-) > > > > Acked-by: Viresh Kumar <viresh.kumar@linaro.org> > > Thanks for your ack :)
Queued up for 3.10.
Thanks, Rafael
-- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center.
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