lkml.org 
[lkml]   [2007]   [Jul]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [2.6 patch] let SUSPEND select HOTPLUG_CPU
Hi!

> > Wait, doesn't HOTPLUG_CPU also depend on EXPERIMENTAL?
>
> Damn, I started thinking about it, and then forgot about it when
> finishing the patch.
>
> My thoughts were:
> Is HOTPLUG_CPU still an experimental feature, or has it become a
> well-tested no longer experimental feature now that it's used on
> most recent laptops?

It is complex :-(.

HOTPLUG_CPU is pretty solid for the case how _suspend_ uses it (ie
drivers quiescent).

It is also known broken for _other_ uses. (There was flamewar about
that recently).

I'm not sure how to express that in Kconfig language without
uglyness... We probably could split HOTPLUG_CPU into
HOTPLUG_CPU_SUSPEND_ONLY (not experimental) and HOTPLUG_CPU (enables
/sysfs interface)... but I do not think that is good idea. (It would
also make suspend debugging a bit harder).

Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-07-30 23:21    [W:0.128 / U:0.496 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site