[linux-pm] Re: Hotplug events during sleep transition

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On Fri, 23 Dec 2005, Pavel Machek wrote:

> Well, if you can find some elegant solution in the core, I think thats
> the best way.
> 
> You could set system_state to "suspending" or something like that, and
> just if() out notifications in that case.

How about simply adding a call to try_to_freeze() somewhere inside 
kernel/kmod.c:____call_usermodehelper()?  That ought to do pretty much 
what I want, in theory.  The hotplug processes would get frozen before 
/sbin/hotplug is exec'ed.

I haven't actually tried it yet, so maybe there's a hidden gotcha.

Alan Stern


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