linux-kernel - Re: [PATCH] Allow cpusets to be configured/built on non-SMP systems

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Date:	Tue, 03 Mar 2009 11:17:15 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Paul Menage <menage@...gle.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux Containers <containers@...ts.linux-foundation.org>
Subject: Re: [PATCH] Allow cpusets to be configured/built on non-SMP systems

Paul Menage wrote:
> Allow cpusets to be configured/built on non-SMP systems
> 
> Currently it's impossible to build cpusets under UML on x86-64, since
> cpusets depends on SMP and x86-64 UML doesn't support SMP.
> 
> There's code in cpusets that doesn't depend on SMP.  This patch
> surrounds the minimum amount of cpusets code with #ifdef CONFIG_SMP in
> order to allow cpusets to build/run on UP systems (for testing
> purposes under UML).
> 

The patch is ok for this purpose.

Reviewed-by: Li Zefan <lizf@...fujitsu.com>

> Signed-off-by: Paul Menage <menage@...gle.com>
> 
> ---
> 
>  init/Kconfig    |    2 +-
>  kernel/cpuset.c |   14 ++++++++++++++
>  2 files changed, 15 insertions(+), 1 deletions(-)
...
> +static int generate_sched_domains(struct cpumask **domains,
> +			struct sched_domain_attr **attributes)
> +{

Except here should "return 0;", otherwise emit a compile warining.

> +}
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