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From: Oliver Neukum <oliver@neukum.name>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linux-kernel@vger.kernel.org, nigel@nigel.suspend2.net,
	pm list <linux-pm@lists.osdl.org>
Subject: Re: question on resume()
Date: Wed, 31 Jan 2007 09:40:14 +0100 (MET)	[thread overview]
Message-ID: <200701310940.26040.oliver@neukum.name> (raw)
In-Reply-To: <200701310933.29443.rjw@sisk.pl>

Am Mittwoch, 31. Januar 2007 09:33 schrieb Rafael J. Wysocki:
> On Tuesday, 30 January 2007 23:32, Rafael J. Wysocki wrote:

> > Generally, you are safe if your driver only calls wake_up() from a process
> > context, but not from .resume() or .suspend() routines (or from an
> > unfreezeable kernel thread).
> 
> Ah, sorry, I've just realized I was wrong.  Processes in TASK_UNINTERRUPTIBLE
> cannot be frozen!  So, the above only applies to wake_up_interruptible().

So the kernel will wait for tasks in TASK_UNINTERRUPTIBLE to finish IO
before it calls suspend()? I am confused.

	Regards
		Oliver

  reply	other threads:[~2007-01-31  8:40 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-29 11:06 Oliver Neukum
2007-01-29 11:24 ` Nigel Cunningham
2007-01-29 11:34   ` Oliver Neukum
2007-01-29 20:14     ` Nigel Cunningham
2007-01-29 21:04       ` Oliver Neukum
2007-01-29 21:21         ` Nigel Cunningham
2007-01-29 23:10           ` Rafael J. Wysocki
2007-01-30 16:32             ` Rafael J. Wysocki
2007-01-30 16:50               ` Oliver Neukum
2007-01-30 22:32                 ` Rafael J. Wysocki
2007-01-31  8:33                   ` Rafael J. Wysocki
2007-01-31  8:40                     ` Oliver Neukum [this message]
2007-01-31  8:49                       ` Rafael J. Wysocki
2007-01-31  9:04                         ` Oliver Neukum
2007-01-31  9:36                           ` [linux-pm] " Pavel Machek
2007-01-31 10:14                             ` Oliver Neukum
2007-01-31 10:30                               ` Pavel Machek
2007-01-31 15:54                             ` Alan Stern
2007-01-31 16:12                               ` Oliver Neukum
2007-01-31 16:27                                 ` Alan Stern
2007-01-31 18:04                               ` Woodruff, Richard
2007-01-31 15:48                     ` Alan Stern
2007-01-31 18:52                       ` Rafael J. Wysocki

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