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From: Randy Dunlap <randy.dunlap@oracle.com>
To: Brian Swetland <swetland@google.com>
Cc: Greg KH <greg@kroah.com>, Arve Hj?nnev?g <arve@android.com>,
	linux-pm@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org, Pavel Machek <pavel@ucw.cz>,
	"Rafael J. Wysocki" <rjw@sisk.pl>,
	Len Brown <len.brown@intel.com>
Subject: Re: [PATCH 5/9] PM: suspend_block: Add debugfs file
Date: Mon, 26 Apr 2010 06:28:02 -0700	[thread overview]
Message-ID: <4BD594E2.8030603@oracle.com> (raw)
In-Reply-To: <p2xa55d774e1004252324i4dca8cc3y1ffacec838c436f8@mail.gmail.com>

On 04/25/10 23:24, Brian Swetland wrote:
> On Sun, Apr 25, 2010 at 12:53 PM, Randy Dunlap <randy.dunlap@oracle.com> wrote:
>> On 04/25/10 11:15, Greg KH wrote:
>>> On Fri, Apr 23, 2010 at 01:58:53PM -0700, Randy Dunlap wrote:
>>>> On Thu, 22 Apr 2010 18:08:54 -0700 Arve Hj?nnev?g wrote:
>>>>
>>>>> Report active and inactive suspend blockers in
>>>>> /sys/kernel/debug/suspend_blockers.
>>>>
>>>>
>>>> This looks more like user interface information than it does debug information.
>>>> If that's correct, it shouldn't be in debugfs.
>>>
>>> It's debug-like information, and has more than one value per file, so
>>> debugfs seems like the proper place for it.  I have no objection to it
>>> going there.
>>
>> I have no objection if it really is debug info, but I'm not convinced
>> of that yet.
> 
> Our most common use of this information is to capture it in bugreports
> (along with process lists, system/radio logs, memory stats, etc) as
> one additional piece of data used to diagnose a misbehaving device
> (most commonly to answer the "why does the battery seem to be draining
> too quickly?" question).

OK, thanks for the info.  Sounds good (i.e., it is debug info).

-- 
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

  reply	other threads:[~2010-04-26 13:29 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-23  1:08 [PATCH 0/9] Suspend block api (version 4) Arve Hjønnevåg
2010-04-23  1:08 ` [PATCH 1/9] PM: Add suspend block api Arve Hjønnevåg
2010-04-23  1:08   ` [PATCH 2/9] PM: suspend_block: Add driver to access suspend blockers from user-space Arve Hjønnevåg
2010-04-23  1:08     ` [PATCH 3/9] PM: suspend_block: Abort task freezing if a suspend_blocker is active Arve Hjønnevåg
2010-04-23  1:08       ` [PATCH 4/9] PM: suspend_block: Switch to list of active and inactive suspend blockers Arve Hjønnevåg
2010-04-23  1:08         ` [PATCH 5/9] PM: suspend_block: Add debugfs file Arve Hjønnevåg
2010-04-23  1:08           ` [PATCH 6/9] PM: suspend_block: Add suspend_blocker stats Arve Hjønnevåg
2010-04-23  1:08             ` [PATCH 7/9] PM: Add suspend blocking work Arve Hjønnevåg
2010-04-23  1:08               ` [PATCH 8/9] Input: Block suspend while event queue is not empty Arve Hjønnevåg
2010-04-23  1:08                 ` [PATCH 9/9] power_supply: Block suspend while power supply change notifications are pending Arve Hjønnevåg
2010-04-23 20:56                 ` [PATCH 8/9] Input: Block suspend while event queue is not empty Randy Dunlap
2010-04-23 21:08                   ` Dmitry Torokhov
2010-04-24  5:02                     ` Arve Hjønnevåg
2010-04-24 14:36                       ` [linux-pm] " Alan Stern
2010-04-25  2:30                         ` Rafael J. Wysocki
2010-04-25 15:29                           ` Alan Stern
2010-04-25 22:41                             ` Arve Hjønnevåg
2010-04-24  4:58                   ` Arve Hjønnevåg
2010-04-23  8:16               ` [PATCH 7/9] PM: Add suspend blocking work Tejun Heo
2010-04-23 12:20                 ` Oleg Nesterov
2010-04-23 22:49                   ` Arve Hjønnevåg
2010-04-24  5:21                     ` Arve Hjønnevåg
2010-04-24  6:33                     ` Tejun Heo
2010-04-24  7:21                       ` Arve Hjønnevåg
2010-04-24  7:43                         ` Tejun Heo
2010-04-26 14:06                     ` Oleg Nesterov
2010-04-23 20:58           ` [PATCH 5/9] PM: suspend_block: Add debugfs file Randy Dunlap
2010-04-24  3:23             ` Arve Hjønnevåg
2010-04-24  4:24               ` Randy Dunlap
2010-04-24  4:54                 ` Arve Hjønnevåg
2010-04-25 18:15             ` Greg KH
2010-04-25 19:53               ` Randy Dunlap
2010-04-26  0:00                 ` tytso
2010-04-26  0:23                   ` Randy Dunlap
2010-04-26  0:45                     ` tytso
2010-04-26  0:50                       ` Randy Dunlap
2010-04-26  1:39                     ` [linux-pm] " Alan Stern
2010-04-26  6:24                 ` Brian Swetland
2010-04-26 13:28                   ` Randy Dunlap [this message]
2010-04-23  2:25     ` [linux-pm] [PATCH 2/9] PM: suspend_block: Add driver to access suspend blockers from user-space Matt Helsley
2010-04-23  3:54       ` Arve Hjønnevåg
2010-04-23  4:38       ` Greg KH
2010-04-23  8:43     ` Pavel Machek
2010-04-23 16:43       ` [linux-pm] " Alan Stern
2010-04-24  3:20         ` Arve Hjønnevåg
2010-04-24  5:55           ` Pavel Machek
2010-04-24 14:44             ` Alan Stern
2010-04-25 22:34               ` Arve Hjønnevåg
2010-04-26 19:25                 ` Alan Stern
2010-04-27  4:04                   ` Arve Hjønnevåg
2010-04-27 18:33                     ` Alan Stern
2010-04-27 22:03                       ` Rafael J. Wysocki
2010-04-27 23:22                         ` Arve Hjønnevåg
2010-04-24  1:53       ` tytso
2010-04-24  5:39         ` Pavel Machek
2010-04-23 16:33   ` [PATCH 1/9] PM: Add suspend block api Alan Stern
2010-04-23 16:45     ` [linux-pm] " Alan Stern
2010-04-24  2:15     ` Arve Hjønnevåg
2010-04-24  2:30       ` Alan Stern
2010-04-24  3:14         ` Arve Hjønnevåg
2010-04-23  4:39 ` [linux-pm] [PATCH 0/9] Suspend block api (version 4) Greg KH

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