[linux-pm] question on resume()

[oliver at neukum.name (Oliver Neukum)]

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