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From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: "Vitaly Wool" <vitalywool@gmail.com>,
	"Brian Swetland" <swetland@google.com>,
	"Arve Hjønnevåg" <arve@android.com>,
	"Arjan van de Ven" <arjan@infradead.org>,
	tytso@mit.edu, "Florian Mickler" <florian@mickler.org>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	LKML <linux-kernel@vger.kernel.org>, "Neil Brown" <neilb@suse.de>,
	"James Bottomley" <James.Bottomley@suse.de>,
	"Alan Cox" <alan@lxorguk.ukuu.org.uk>,
	"Linux PM" <linux-pm@lists.linux-foundation.org>,
	"Ingo Molnar" <mingo@elte.hu>,
	"Linux OMAP Mailing List" <linux-omap@vger.kernel.org>,
	"Linus Torvalds" <torvalds@linux-foundation.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Felipe Balbi" <felipe.balbi@nokia.com>
Subject: Re: [linux-pm] suspend blockers & Android integration
Date: Sun, 6 Jun 2010 21:01:52 +0200	[thread overview]
Message-ID: <201006062101.52752.rjw@sisk.pl> (raw)
In-Reply-To: <20100606173146.GA13432@srcf.ucam.org>

On Sunday 06 June 2010, Matthew Garrett wrote:
> On Sun, Jun 06, 2010 at 07:21:49PM +0200, Vitaly Wool wrote:
> > 2010/6/6 Matthew Garrett <mjg59@srcf.ucam.org>:
> > 
> > > Suspend blocks prevent system suspend, not any per-device suspend.
> > 
> > Can you suspend a device which is holding a wake lock?
> 
> Yes. Suspend blocks are orthogonal to runtime PM.

Yes, they are.

The idea that they would somehow interfere with runtime PM has always been pure
nonsense.  They wouldn't and there's no way in which they could.

Whether or not they are really necessary to address the Android requirements is
a different question, though, and I don't really think so right now.  At least
not in the form submitted by Arve.

Also, there's some overlap between suspend blockers and the PM QoS framework,
so it seems to be a good idea to extend PM QoS (which already is in the kernel)
to express some requirements that suspend blockers are supposed to express.

Rafael

  reply	other threads:[~2010-06-06 19:00 UTC|newest]

Thread overview: 195+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-03 19:30 suspend blockers & Android integration Ingo Molnar
2010-06-03 19:50 ` Brian Swetland
2010-06-04  7:57   ` Ingo Molnar
2010-06-04  8:29     ` Brian Swetland
2010-06-04  8:55       ` Ingo Molnar
2010-06-04  9:03         ` Pekka Enberg
2010-06-04  9:08         ` Brian Swetland
2010-06-04  9:59           ` Ingo Molnar
2010-06-04 10:09             ` Brian Swetland
2010-06-04 14:24             ` James Bottomley
2010-06-04 15:07               ` Florian Mickler
2010-06-06  8:04           ` david
2010-06-10 13:58       ` Pavel Machek
2010-06-11  4:21         ` [linux-pm] " David Brownell
2010-06-11 14:28           ` James Bottomley
2010-06-11 14:46             ` Alan Stern
2010-06-11 15:01               ` Mark Brown
2010-06-11 15:02               ` James Bottomley
2010-06-11 20:48                 ` Alan Stern
2010-06-11 21:04                   ` James Bottomley
2010-06-12 17:10                   ` Mark Brown
2010-06-12  2:43             ` David Brownell
2010-06-11 14:42           ` Alan Stern
     [not found] ` <20100603231153.GA11302@elte.hu>
2010-06-03 23:23   ` Ingo Molnar
2010-06-03 23:37     ` Linus Torvalds
2010-06-03 23:46       ` Ingo Molnar
2010-06-04  2:16         ` Linus Torvalds
2010-06-04  2:26           ` Linus Torvalds
2010-06-04  3:45             ` Arjan van de Ven
2010-06-04  4:46               ` Linus Torvalds
2010-06-04 10:42                 ` Andi Kleen
2010-06-04  8:15               ` Ingo Molnar
2010-06-06  8:16               ` david
2010-06-06  8:23             ` david
2010-06-04  3:45           ` Arve Hjønnevåg
2010-06-04  6:22           ` Ingo Molnar
2010-06-04  8:11           ` Ingo Molnar
2010-06-05 20:37           ` Florian Mickler
2010-06-04  0:39     ` Ingo Molnar
2010-06-04 14:50       ` Alan Stern
2010-06-04  4:38     ` Neil Brown
2010-06-04  4:54     ` Arve Hjønnevåg
2010-06-04  7:13       ` Ingo Molnar
2010-06-04  7:37         ` Arve Hjønnevåg
2010-06-04  8:34           ` Ingo Molnar
2010-06-04  8:56             ` Arve Hjønnevåg
2010-06-04 12:06               ` Peter Zijlstra
2010-06-05  0:10                 ` Arve Hjønnevåg
2010-06-05  9:54                   ` Peter Zijlstra
2010-06-05 16:28                     ` Arjan van de Ven
2010-06-05 21:26                       ` Arve Hjønnevåg
2010-06-05 22:23                         ` Arjan van de Ven
2010-06-05 22:26                           ` Brian Swetland
2010-06-05 22:48                             ` Arjan van de Ven
2010-06-05 23:45                               ` Thomas Gleixner
2010-06-06  0:34                               ` Arve Hjønnevåg
2010-06-05 22:52                             ` Rafael J. Wysocki
2010-06-05 22:39                           ` Arve Hjønnevåg
2010-06-05 23:34                             ` Arjan van de Ven
2010-06-06  0:02                               ` Arve Hjønnevåg
2010-06-06 11:18                           ` Felipe Contreras
2010-06-06 11:26                             ` david
2010-06-06  7:52                         ` [linux-pm] " Vitaly Wool
2010-06-06  8:20                           ` Brian Swetland
2010-06-06  8:32                             ` Vitaly Wool
2010-06-06  9:21                               ` Brian Swetland
2010-06-06  9:56                                 ` david
2010-06-06 11:11                                   ` Felipe Contreras
2010-06-06 10:00                                 ` Vitaly Wool
2010-06-06 10:12                                   ` david
2010-06-06 10:19                                     ` [linux-pm] " Vitaly Wool
2010-06-06 10:49                                       ` Florian Mickler
2010-06-06 10:57                                         ` Vitaly Wool
2010-06-06 11:14                                         ` [linux-pm] " david
2010-06-07 12:16                                           ` Florian Mickler
2010-06-09  1:14                                             ` david
2010-06-09  3:46                                               ` Linus Torvalds
2010-06-09  7:43                                                 ` [linux-pm] " Felipe Contreras
2010-06-09  9:40                                                   ` Rafael J. Wysocki
2010-06-09 22:04                                                     ` Neil Brown
2010-06-10  8:59                                                       ` Rafael J. Wysocki
2010-06-10 12:00                                                         ` Neil Brown
2010-06-10 16:06                                                           ` Rafael J. Wysocki
2010-06-10 13:57                                                         ` Mark Brown
2010-06-10 15:46                                                           ` Rafael J. Wysocki
2010-06-10 19:01                                                             ` Mark Brown
2010-06-10 14:47                                                         ` Alan Stern
2010-06-10 15:44                                                           ` Rafael J. Wysocki
2010-06-06 10:46                                   ` Florian Mickler
2010-06-06 11:05                                     ` Alan Cox
2010-06-06 13:34                                       ` Matthew Garrett
2010-06-06 14:31                                       ` James Bottomley
2010-06-06 15:46                                         ` [linux-pm] " Thomas Gleixner
2010-06-06 17:08                                           ` James Bottomley
2010-06-06 18:04                                             ` Thomas Gleixner
2010-06-06 18:44                                               ` Brian Swetland
2010-06-06 19:26                                                 ` Thomas Gleixner
2010-06-06 19:05                                             ` [linux-pm] " Christoph Hellwig
2010-06-06 19:15                                               ` Brian Swetland
2010-06-06 19:24                                                 ` [linux-pm] " Christoph Hellwig
2010-06-06 19:58                                                   ` Brian Swetland
2010-06-06 22:26                                                     ` Thomas Gleixner
2010-06-07  8:00                                                       ` Christoph Hellwig
2010-06-07  8:03                                                     ` Christoph Hellwig
2010-06-07  8:16                                                       ` Brian Swetland
2010-06-07 13:20                                                     ` Peter Zijlstra
2010-06-07 18:40                                                       ` David Brownell
2010-06-07 23:17                                                       ` Linus Walleij
2010-06-07 23:37                                                         ` Brian Swetland
2010-06-08  2:15                                                         ` Valdis.Kletnieks
2010-06-09 12:33                                                     ` [linux-pm] " Mark Brown
2010-07-09 19:11                                                     ` HTC Dream drivers was " Pavel Machek
2010-06-06 13:31                                   ` Matthew Garrett
2010-06-06 15:26                                     ` Vitaly Wool
2010-06-06 15:29                                       ` Matthew Garrett
2010-06-06 15:47                                         ` Vitaly Wool
2010-06-06 16:43                                           ` Matthew Garrett
2010-06-06 17:21                                             ` Vitaly Wool
2010-06-06 17:31                                               ` Matthew Garrett
2010-06-06 19:01                                                 ` Rafael J. Wysocki [this message]
2010-06-07 10:25                                                 ` Felipe Contreras
2010-06-07 13:01                                               ` Florian Mickler
2010-06-07  0:01                                         ` Alan Stern
2010-06-07  1:07                                           ` [linux-pm] suspend blockers & Android integrationy Thomas Gleixner
2010-06-07 14:42                                             ` Alan Stern
2010-06-07 15:49                                               ` Thomas Gleixner
2010-06-07 15:56                                           ` [linux-pm] suspend blockers & Android integration Florian Mickler
2010-06-08  0:57                                           ` Arve Hjønnevåg
2010-06-08  1:13                                             ` Alan Stern
2010-06-04  9:43     ` Peter Zijlstra
2010-06-04  9:54       ` Peter Zijlstra
2010-06-04 10:03         ` Ingo Molnar
2010-06-04 10:08           ` Peter Zijlstra
2010-06-04 10:11             ` Brian Swetland
2010-06-04 10:11         ` Thomas Gleixner
2010-06-04 10:13           ` Peter Zijlstra
2010-06-04 23:38       ` Rafael J. Wysocki
2010-06-05  0:05         ` Thomas Gleixner
2010-06-05  0:39           ` Arve Hjønnevåg
2010-06-05  1:18             ` Matt Helsley
2010-06-05  5:35               ` Arve Hjønnevåg
2010-06-05 18:25                 ` Rafael J. Wysocki
2010-06-05 22:10                   ` Arve Hjønnevåg
2010-06-05 23:03                     ` Rafael J. Wysocki
2010-06-06  1:03                       ` Arve Hjønnevåg
2010-06-06  2:49                         ` Alan Stern
2010-06-06 11:09                           ` [linux-pm] " Alan Stern
2010-06-08  0:23                             ` Arve Hjønnevåg
2010-06-08  1:09                               ` Alan Stern
2010-06-08  1:31                                 ` Arve Hjønnevåg
2010-06-08  2:32                                   ` Alan Stern
2010-06-08  3:05                                     ` Arve Hjønnevåg
2010-06-08 10:19                                       ` Florian Mickler
2010-06-08 14:50                                       ` Alan Stern
2010-06-09  1:48                                         ` Arve Hjønnevåg
2010-06-09 15:29                                           ` Alan Stern
2010-06-09 23:42                                             ` Arve Hjønnevåg
2010-06-10  4:21                                               ` david
2010-06-10  4:51                                                 ` Arve Hjønnevåg
2010-06-10  5:10                                                   ` Neil Brown
2010-06-10 14:39                                                 ` Alan Stern
2010-06-10 14:28                                               ` Alan Stern
2010-06-10 23:02                                                 ` Arve Hjønnevåg
2010-06-11  1:44                                                   ` Alan Stern
2010-06-11  3:16                                                     ` Arve Hjønnevåg
2010-06-11 14:33                                                       ` Alan Stern
2010-06-11 22:18                                                         ` Arve Hjønnevåg
2010-06-12 15:22                                                           ` [linux-pm] " Alan Stern
2010-06-07 23:16                           ` Arve Hjønnevåg
2010-06-06 13:29                         ` Rafael J. Wysocki
2010-06-05  1:33             ` Thomas Gleixner
2010-06-05  5:23               ` Arve Hjønnevåg
2010-06-05 16:47                 ` Thomas Gleixner
2010-06-05 21:47                   ` Arve Hjønnevåg
2010-06-05 22:11                     ` Thomas Gleixner
2010-06-05 23:21                       ` Arve Hjønnevåg
2010-06-05 23:39                         ` Rafael J. Wysocki
2010-06-06  0:04                         ` Thomas Gleixner
2010-06-06  1:16                           ` Arve Hjønnevåg
2010-06-06 10:36                             ` Thomas Gleixner
2010-06-06 14:43                               ` Matt Helsley
2010-06-08  0:45                                 ` Arve Hjønnevåg
2010-06-07 23:34                               ` Arve Hjønnevåg
2010-06-06 10:56                             ` Thomas Gleixner
2010-06-08  0:05                               ` Arve Hjønnevåg
2010-06-06  0:19                         ` Thomas Gleixner
2010-06-06  1:24                           ` Arve Hjønnevåg
2010-06-06  0:32                         ` Thomas Gleixner
2010-06-06  1:45                           ` Arve Hjønnevåg
2010-06-06 10:01                             ` Thomas Gleixner
2010-06-05 22:44                     ` Rafael J. Wysocki
2010-06-05 23:56                       ` Arve Hjønnevåg
2010-06-06 13:55                         ` Rafael J. Wysocki
2010-06-08  0:39                           ` Arve Hjønnevåg
2010-06-08  9:11                             ` Rafael J. Wysocki

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