From: viresh.kumar@linaro.org (Viresh Kumar)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 2/5] cpufreq: Keep track of which CPU owns the kobj/sysfs nodes separately
Date: Thu, 7 Aug 2014 14:32:03 +0530 [thread overview]
Message-ID: <CAKohpomN_shuNTAkHEs-1+rqjM21RRZmeg41PNWY3AnSQOEGzA@mail.gmail.com> (raw)
In-Reply-To: <1406250448-470-3-git-send-email-skannan@codeaurora.org>
On 25 July 2014 06:37, Saravana Kannan <skannan@codeaurora.org> 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 <skannan@codeaurora.org>
> ---
> 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
next prev parent reply other threads:[~2014-08-07 9:02 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-10 2:37 [PATCH] cpufreq: Don't destroy/realloc policy/sysfs on hotplug/suspend Saravana Kannan
2014-07-11 4:18 ` [PATCH v2] " Saravana Kannan
2014-07-11 6:19 ` Viresh Kumar
2014-07-11 9:59 ` skannan at codeaurora.org
2014-07-11 10:07 ` skannan at codeaurora.org
2014-07-11 10:52 ` Viresh Kumar
2014-07-12 2:44 ` Saravana Kannan
2014-07-14 6:09 ` Viresh Kumar
2014-07-14 19:08 ` Saravana Kannan
2014-07-15 4:35 ` Viresh Kumar
2014-07-15 5:36 ` Saravana Kannan
2014-07-15 5:52 ` Viresh Kumar
2014-07-15 6:58 ` Srivatsa S. Bhat
2014-07-15 17:35 ` skannan at codeaurora.org
2014-07-16 7:44 ` Srivatsa S. Bhat
2014-07-16 5:44 ` Viresh Kumar
2014-07-16 7:49 ` Srivatsa S. Bhat
2014-07-12 3:06 ` Saravana Kannan
2014-07-14 6:13 ` Viresh Kumar
2014-07-14 19:10 ` Saravana Kannan
2014-07-11 7:43 ` Srivatsa S. Bhat
2014-07-11 10:02 ` skannan at codeaurora.org
2014-07-15 22:47 ` [PATCH v3 0/2] Simplify hotplug/suspend handling Saravana Kannan
2014-07-15 22:47 ` [PATCH v3 1/2] cpufreq: Don't destroy/realloc policy/sysfs on hotplug/suspend Saravana Kannan
2014-07-16 0:28 ` Saravana Kannan
2014-07-16 8:30 ` Viresh Kumar
2014-07-16 19:19 ` Saravana Kannan
2014-07-16 8:24 ` Viresh Kumar
2014-07-16 11:16 ` Srivatsa S. Bhat
2014-07-16 13:13 ` Viresh Kumar
2014-07-16 18:04 ` Srivatsa S. Bhat
2014-07-16 19:56 ` Saravana Kannan
2014-07-17 5:51 ` Viresh Kumar
2014-07-16 19:56 ` Saravana Kannan
2014-07-17 5:35 ` Viresh Kumar
2014-07-18 3:25 ` Saravana Kannan
2014-07-18 4:19 ` Viresh Kumar
2014-07-16 20:25 ` Saravana Kannan
2014-07-16 21:45 ` Saravana Kannan
2014-07-17 6:24 ` Viresh Kumar
2014-07-16 14:29 ` Dirk Brandewie
2014-07-16 15:28 ` Viresh Kumar
2014-07-16 19:42 ` Saravana Kannan
2014-07-15 22:47 ` [PATCH v3 2/2] cpufreq: Simplify and fix mutual exclusion with hotplug Saravana Kannan
2014-07-16 8:48 ` Viresh Kumar
2014-07-16 19:34 ` Saravana Kannan
2014-07-25 1:07 ` [PATCH v4 0/5] Simplify hotplug/suspend handling Saravana Kannan
2014-07-25 1:07 ` [PATCH v4 1/5] cpufreq: Don't wait for CPU to going offline to restart governor Saravana Kannan
2014-07-31 20:47 ` Saravana Kannan
2014-07-25 1:07 ` [PATCH v4 2/5] cpufreq: Keep track of which CPU owns the kobj/sysfs nodes separately Saravana Kannan
2014-08-07 9:02 ` Viresh Kumar [this message]
2014-07-25 1:07 ` [PATCH v4 3/5] cpufreq: Don't destroy/realloc policy/sysfs on hotplug/suspend Saravana Kannan
2014-07-31 21:56 ` Rafael J. Wysocki
2014-07-31 22:15 ` Saravana Kannan
2014-07-31 23:48 ` Saravana Kannan
2014-08-07 10:51 ` Viresh Kumar
2014-08-12 9:17 ` Viresh Kumar
2014-08-07 10:48 ` Viresh Kumar
2014-08-11 22:13 ` Saravana Kannan
2014-08-12 8:51 ` Viresh Kumar
2014-07-25 1:07 ` [PATCH v4 4/5] cpufreq: Properly handle physical CPU hot-add/hot-remove Saravana Kannan
2014-08-07 11:02 ` Viresh Kumar
2014-08-11 22:15 ` Saravana Kannan
2014-07-25 1:07 ` [PATCH v4 5/5] cpufreq: Delete dead code related to policy save/restore Saravana Kannan
2014-08-07 11:06 ` Viresh Kumar
2014-07-29 5:52 ` [PATCH v4 0/5] Simplify hotplug/suspend handling skannan at codeaurora.org
2014-07-30 0:29 ` Rafael J. Wysocki
2014-07-31 20:25 ` Saravana Kannan
2014-08-07 6:04 ` skannan at codeaurora.org
2014-10-16 8:53 ` Viresh Kumar
2014-10-23 21:41 ` Saravana Kannan
2014-07-16 22:02 ` [PATCH] cpufreq: Don't destroy/realloc policy/sysfs on hotplug/suspend Rafael J. Wysocki
2014-07-16 22:35 ` Saravana Kannan
2014-07-24 3:02 ` Saravana Kannan
2014-07-24 5:04 ` Viresh Kumar
2014-07-24 9:12 ` skannan at codeaurora.org
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAKohpomN_shuNTAkHEs-1+rqjM21RRZmeg41PNWY3AnSQOEGzA@mail.gmail.com \
--to=viresh.kumar@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).