From: Pavel Machek <pavel@ucw.cz>
To: Brian King <brking@linux.vnet.ibm.com>
Cc: linux-pm@lists.linux-foundation.org
Subject: Re: [PATCH 1/1] PM: Add arch_suspend_disable_nonboot_cpus
Date: Tue, 23 Feb 2010 16:43:59 +0100 [thread overview]
Message-ID: <20100223154359.GA6220@elf.ucw.cz> (raw)
In-Reply-To: <4B8313D4.4050802@linux.vnet.ibm.com>
Hi!
> > OK
> >
> >> Here is an alternative implementation of the patch. My test machine is
> >> currently unavailable, so it is not yet been tested. How does this one look?
> >
> > Well, I'd like to do that cleanly from the start.
> >
> > Now, the problem is that PM_SLEEP_SMP selects HOTPLUG_CPU, because
> > that's necessary for the other architectures to make SMP suspend work, but it's
> > not necessary on your architecture. Moreover, you don't need to compile
> > enable_nonboot_cpus() at all.
> At least for the architecture I am enabling this support for
> (PPC_PSERIES), upon looking closer, it looks like PM_SLEEP_SMP was
> never defined, so enable_nonboot_cpus and disable_nonboot_cpus were
> always nooped before, which I didn't previously realize. We probably
> want to retain this behavior. >
(Please wrap at column 80)
This patch is already way better than the original one, but... Why do
you want enable/disable_nonboot_cpus to be noped out?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2010-02-23 15:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-21 16:32 [PATCH 1/1] PM: Add arch_suspend_disable_nonboot_cpus Brian King
[not found] ` <20100221191821.GA2198@ucw.cz>
2010-02-21 22:01 ` Brian King
[not found] ` <201002212308.52023.rjw@sisk.pl>
2010-02-21 22:22 ` Brian King
[not found] ` <201002212327.13399.rjw@sisk.pl>
2010-02-21 22:28 ` Brian King
[not found] ` <201002212337.10462.rjw@sisk.pl>
2010-02-21 22:46 ` Brian King
2010-02-22 19:14 ` Rafael J. Wysocki
2010-02-22 23:31 ` Brian King
2010-02-23 15:43 ` Pavel Machek [this message]
2010-02-23 16:41 ` Brian King
2010-02-23 16:49 ` Pavel Machek
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