Re: question on resume()

From: Oliver Neukum
Date: Wed Jan 31 2007 - 03:40:49 EST


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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/