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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Nigel Cunningham <ncunningham@crca.org.au>,
	LKML <linux-kernel@vger.kernel.org>,
	Jesse Barnes <jbarnes@virtuousgeek.org>,
	ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
	pm list <linux-pm@lists.linux-foundation.org>,
	Alexey Starikovskiy <astarikovskiy@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 1/3] PM: Introduce new top level suspend and	hibernation callbacks (rev. 8)
Date: Tue, 15 Apr 2008 06:47:36 +1000	[thread overview]
Message-ID: <1208206056.6958.176.camel@pasglop> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0804141049370.2236-100000@iolanthe.rowland.org>


On Mon, 2008-04-14 at 10:51 -0400, Alan Stern wrote:
> On Sun, 13 Apr 2008, David Brownell wrote:
> 
> > I sort of agree.  Looking at it from a whole-system perspective,
> > suspending needs to be able to chitchat with userspace ... and I
> > don't think that can be done *before* writing to /sys/power/state
> > in an acceptably generic/portable way.  (Briefly, applications
> > need to have clean stopping points and be able to arrange system
> > wakeup.  They may well have more work to do than most drivers.)
> 
> Pavel's recent work aside, the only way to initiate a system sleep is 
> from userspace.  So it seems natural for all application notifications 
> to be made by the initiating program, perhaps via dbus.

No. Certainly not via dbus.

Ben.

  parent reply	other threads:[~2008-04-14 20:47 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200804040111.15255.rjw@sisk.pl>
2008-04-03 23:12 ` [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 7) Rafael J. Wysocki
2008-04-03 23:13 ` [PATCH 2/3] PM: New suspend and hibernation callbacks for platform bus type (rev. 3) Rafael J. Wysocki
2008-04-03 23:15 ` [PATCH 3/3] PM: New suspend and hibernation callbacks for PCI " Rafael J. Wysocki
     [not found] ` <200804040112.45769.rjw@sisk.pl>
2008-04-12  0:23   ` [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 7) Greg KH
     [not found]   ` <20080412002302.GA27656@kroah.com>
2008-04-13 13:31     ` Rafael J. Wysocki
     [not found]     ` <200804131531.11650.rjw@sisk.pl>
2008-04-13 13:33       ` [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 8) Rafael J. Wysocki
2008-04-13 13:33       ` [PATCH 2/3] PM: New suspend and hibernation callbacks for platform bus type (rev. 3) Rafael J. Wysocki
2008-04-13 13:34       ` [PATCH 3/3] PM: New suspend and hibernation callbacks for PCI bus type (rev. 4) Rafael J. Wysocki
     [not found]       ` <200804131533.03150.rjw@sisk.pl>
2008-04-13 21:05         ` [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 8) Benjamin Herrenschmidt
2008-04-13 21:39           ` Rafael J. Wysocki
     [not found]           ` <200804132339.45280.rjw@sisk.pl>
2008-04-13 22:10             ` Benjamin Herrenschmidt
     [not found]             ` <1208124646.6958.61.camel@pasglop>
2008-04-13 22:27               ` Rafael J. Wysocki
     [not found]               ` <200804140027.12161.rjw@sisk.pl>
2008-04-13 22:47                 ` Benjamin Herrenschmidt
     [not found]                 ` <1208126822.6958.63.camel@pasglop>
2008-04-13 23:08                   ` Rafael J. Wysocki
2008-04-13 23:11                   ` Nigel Cunningham
     [not found]                   ` <1208128289.29577.25.camel@nigel-laptop>
2008-04-13 23:17                     ` Rafael J. Wysocki
2008-04-13 23:23                     ` Alan Stern
     [not found]                     ` <200804140117.34554.rjw@sisk.pl>
2008-04-13 23:29                       ` Nigel Cunningham
     [not found]                   ` <200804140108.05447.rjw@sisk.pl>
2008-04-13 23:46                     ` Benjamin Herrenschmidt
     [not found]                     ` <1208130390.6958.71.camel@pasglop>
2008-04-14  0:31                       ` Rafael J. Wysocki
     [not found]                       ` <200804140231.32245.rjw@sisk.pl>
2008-04-14  0:46                         ` Benjamin Herrenschmidt
     [not found]                         ` <1208134017.6958.94.camel@pasglop>
2008-04-14  1:09                           ` Rafael J. Wysocki
2008-04-14  1:37                           ` Nigel Cunningham
     [not found]                           ` <200804140309.22057.rjw@sisk.pl>
2008-04-14  3:23                             ` Benjamin Herrenschmidt
     [not found]                             ` <1208143380.6958.105.camel@pasglop>
2008-04-14  6:43                               ` Oliver Neukum
     [not found]                               ` <200804140843.06088.oliver@neukum.org>
2008-04-14  7:23                                 ` Benjamin Herrenschmidt
2008-04-14  7:37                                   ` Oliver Neukum
     [not found]                                   ` <200804140937.09915.oliver@neukum.org>
2008-04-14  7:50                                     ` Benjamin Herrenschmidt
2008-04-14 12:11                               ` Rafael J. Wysocki
2008-04-14 14:49                               ` Alan Stern
     [not found]                           ` <1208137034.29577.41.camel@nigel-laptop>
2008-04-14 12:25                             ` Rafael J. Wysocki
2008-04-14  4:47                   ` David Brownell
2008-04-14 10:55                   ` Pavel Machek
     [not found]                   ` <200804132147.03579.david-b@pacbell.net>
2008-04-14 12:34                     ` Rafael J. Wysocki
2008-04-14 14:51                     ` Alan Stern
     [not found]                     ` <Pine.LNX.4.44L0.0804141049370.2236-100000@iolanthe.rowland.org>
2008-04-14 20:47                       ` Benjamin Herrenschmidt [this message]
2008-04-14 21:21                       ` Pavel Machek
     [not found]                   ` <20080414105522.GA4716@ucw.cz>
2008-04-14 20:45                     ` Benjamin Herrenschmidt
2008-04-14 20:56                       ` Rafael J. Wysocki
2008-04-15 19:27         ` patch pm-introduce-new-top-level-suspend-and-hibernation-callbacks.patch added to gregkh-2.6 tree gregkh
     [not found] <Pine.LNX.4.44L0.0804131916420.3060-100000@netrider.rowland.org>
2008-04-13 23:33 ` [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 8) Rafael J. Wysocki
2008-04-13 23:48 ` Benjamin Herrenschmidt
     [not found] ` <200804140133.23781.rjw@sisk.pl>
2008-04-13 23:49   ` Benjamin Herrenschmidt
     [not found] ` <1208130513.6958.72.camel@pasglop>
2008-04-14  0:07   ` Rafael J. Wysocki
     [not found]   ` <200804140207.19340.rjw@sisk.pl>
2008-04-14  0:40     ` Benjamin Herrenschmidt
2008-04-14  0:43     ` Benjamin Herrenschmidt
     [not found]     ` <1208133790.6958.89.camel@pasglop>
2008-04-14  0:50       ` Rafael J. Wysocki
     [not found]     ` <1208133631.6958.85.camel@pasglop>
2008-04-14  0:59       ` Rafael J. Wysocki
     [not found] <200804141411.19385.rjw@sisk.pl>
2008-04-14 15:13 ` Alan Stern
     [not found] <Pine.LNX.4.44L0.0804141043001.2236-100000@iolanthe.rowland.org>
2008-04-14 20:41 ` Oliver Neukum
     [not found] <Pine.LNX.4.44L0.0804141105460.2406-100000@iolanthe.rowland.org>
2008-04-14 20:48 ` Benjamin Herrenschmidt

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