From mboxrd@z Thu Jan 1 00:00:00 1970 From: viresh.kumar@linaro.org (Viresh Kumar) Date: Thu, 7 Aug 2014 14:32:03 +0530 Subject: [PATCH v4 2/5] cpufreq: Keep track of which CPU owns the kobj/sysfs nodes separately In-Reply-To: <1406250448-470-3-git-send-email-skannan@codeaurora.org> References: <1406250448-470-1-git-send-email-skannan@codeaurora.org> <1406250448-470-3-git-send-email-skannan@codeaurora.org> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 25 July 2014 06:37, Saravana Kannan wrote: > The ownership of the kobj doesn't need to match policy->cpu or change as > frequently. So, keep track of it separately. > > Signed-off-by: Saravana Kannan > --- > drivers/cpufreq/cpufreq.c | 4 +++- > include/linux/cpufreq.h | 1 + > 2 files changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c > index ee0eb7b..af4f291 100644 > --- a/drivers/cpufreq/cpufreq.c > +++ b/drivers/cpufreq/cpufreq.c > @@ -868,7 +868,7 @@ static int cpufreq_add_dev_symlink(struct cpufreq_policy *policy) > for_each_cpu(j, policy->cpus) { > struct device *cpu_dev; > > - if (j == policy->cpu) > + if (j == policy->kobj_cpu) > continue; > > pr_debug("Adding link for CPU: %u\n", j); > @@ -917,6 +917,7 @@ static int cpufreq_add_dev_interface(struct cpufreq_policy *policy, > goto err_out_kobj_put; > } > > + policy->kobj_cpu = policy->cpu; Not here but in __cpufreq_add_dev().. > ret = cpufreq_add_dev_symlink(policy); > if (ret) > goto err_out_kobj_put; > @@ -1330,6 +1331,7 @@ static int cpufreq_nominate_new_policy_cpu(struct cpufreq_policy *policy, This doesn't exist anymore. > > return -EINVAL; > } > + policy->kobj_cpu = cpu_dev->id; > > return cpu_dev->id; > } > diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h > index ec4112d..91c2e38 100644 > --- a/include/linux/cpufreq.h > +++ b/include/linux/cpufreq.h > @@ -68,6 +68,7 @@ struct cpufreq_policy { > unsigned int cpu; /* cpu nr of CPU managing this policy */ > unsigned int last_cpu; /* cpu nr of previous CPU that managed > * this policy */ > + unsigned int kobj_cpu; /* Tracks which CPU own the kobj */ > struct clk *clk; > struct cpufreq_cpuinfo cpuinfo;/* see above */ > > -- > 1.8.2.1 > > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > hosted by The Linux Foundation