From: Magnus Damm <magnus.damm@gmail.com>
To: Paul Jackson <pj@sgi.com>
Cc: Andrew Morton <akpm@osdl.org>,
magnus@valinux.co.jp, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] CPUSETS: remove SMP dependency
Date: Thu, 27 Oct 2005 12:25:35 +0900 [thread overview]
Message-ID: <aec7e5c30510262025q4cd09758g2a6319e21889c3f5@mail.gmail.com> (raw)
In-Reply-To: <20051026102509.0b32006d.pj@sgi.com>
On 10/27/05, Paul Jackson <pj@sgi.com> wrote:
> Andrew, responding to Magnus:
> > > Remove the SMP dependency from CPUSETS.
> >
> > Why?
>
> As described in the posting that Magnus linked to, it seemed to me
> like the cleaner approach - if there is no need to link two CONFIG
> options, then don't.
>
> Perhaps someone wants to build a uni-processor (UP) kernel for other
> reasons, but still have it support running some stuff that depends
> on cpusets being present.
Exactly, and the current Kconfig assumes that all NUMA systems are
configured with SMP. But that does not have to be the case, especially
with NUMA_EMU.
Depending on SMP only is wrong IMO because CPUSETS manages both sets
of cpus (SMP) and sets of mems (NUMA).
So CPUSETS should either depend on SMP || NUMA or nothing.
/ magnus
next prev parent reply other threads:[~2005-10-27 3:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-26 7:53 Magnus Damm
2005-10-26 8:09 ` Andrew Morton
2005-10-26 8:19 ` Magnus Damm
2005-10-26 17:25 ` Paul Jackson
2005-10-27 3:25 ` Magnus Damm [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-10-03 8:11 Magnus Damm
2005-10-03 8:43 ` Paul Jackson
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