From mboxrd@z Thu Jan 1 00:00:00 1970 From: skannan@codeaurora.org (Saravana Kannan) Date: Thu, 24 Jul 2014 18:07:25 -0700 Subject: [PATCH v4 2/5] cpufreq: Keep track of which CPU owns the kobj/sysfs nodes separately In-Reply-To: <1406250448-470-1-git-send-email-skannan@codeaurora.org> References: <1406250448-470-1-git-send-email-skannan@codeaurora.org> Message-ID: <1406250448-470-3-git-send-email-skannan@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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; 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, 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