From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Tri Vo <trong@android.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Viresh Kumar <viresh.kumar@linaro.org>,
Hridya Valsaraju <hridya@google.com>,
sspatil@google.com, kaleshsingh@google.com,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux PM <linux-pm@vger.kernel.org>,
"Cc: Android Kernel" <kernel-team@android.com>
Subject: Re: [PATCH v4] PM / wakeup: show wakeup sources stats in sysfs
Date: Tue, 16 Jul 2019 04:11:02 +0200 [thread overview]
Message-ID: <20190716021102.GA8310@kroah.com> (raw)
In-Reply-To: <CAJZ5v0gEzZkbeLFtW5yadwxBryvL3vWcUoQTkUy3VkxiTV+UrA@mail.gmail.com>
On Mon, Jul 15, 2019 at 11:48:27PM +0200, Rafael J. Wysocki wrote:
> On Mon, Jul 15, 2019 at 11:44 PM Tri Vo <trong@android.com> wrote:
> >
> > Userspace can use wakeup_sources debugfs node to plot history of suspend
> > blocking wakeup sources over device's boot cycle. This information can
> > then be used (1) for power-specific bug reporting and (2) towards
> > attributing battery consumption to specific processes over a period of
> > time.
> >
> > However, debugfs doesn't have stable ABI. For this reason, create a
> > 'struct device' to expose wakeup sources statistics in sysfs under
> > /sys/class/wakeup/<name>/.
> >
> > Introduce CONFIG_PM_SLEEP_STATS that enables/disables showing wakeup
> > source statistics in sysfs.
>
> I'm not sure if this is really needed, but I'll let Greg decide.
You are right. Having zillions of config options is a pain, who is
going to turn this off?
But we can always remove the option before 5.4-rc1, so I'll take this
as-is for now :)
> Apart from this
>
> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
thanks for the review! I'll wait for 5.3-rc1 to come out before adding
this to my tree.
greg k-h
next prev parent reply other threads:[~2019-07-16 2:13 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-26 0:54 [PATCH] PM / wakeup: show wakeup sources stats in sysfs Tri Vo
2019-06-26 0:59 ` Tri Vo
2019-06-26 1:12 ` Greg KH
2019-06-26 1:33 ` Tri Vo
2019-06-26 1:46 ` Greg KH
2019-06-26 22:26 ` Tri Vo
2019-06-26 22:48 ` Tri Vo
2019-06-27 0:04 ` Greg KH
2019-06-27 22:53 ` [PATCH v2] " Tri Vo
2019-06-28 15:10 ` Greg KH
2019-07-04 10:31 ` Rafael J. Wysocki
2019-07-08 3:33 ` Tri Vo
2019-07-15 20:11 ` [PATCH v3] " Tri Vo
2019-07-15 20:36 ` Greg KH
2019-07-15 21:43 ` [PATCH v4] " Tri Vo
2019-07-15 21:48 ` Rafael J. Wysocki
2019-07-16 2:11 ` Greg Kroah-Hartman [this message]
2019-07-16 4:16 ` Tri Vo
2019-07-16 8:30 ` Rafael J. Wysocki
2019-07-16 8:39 ` Greg Kroah-Hartman
2019-07-16 9:36 ` Rafael J. Wysocki
2019-07-15 21:48 ` [PATCH v3] " Tri Vo
2019-07-16 2:12 ` Greg KH
2019-06-27 22:57 ` [PATCH] " Tri Vo
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