From: Ingo Molnar <mingo@elte.hu>
To: Chuck Ebbert <cebbert@redhat.com>
Cc: linux-kernel@vger.kernel.org, the arch/x86 maintainers <x86@kernel.org>
Subject: Re: [patch 2/2] x86: move prefill_possible_map calling early, fix, V2
Date: Tue, 30 Sep 2008 09:53:53 +0200 [thread overview]
Message-ID: <20080930075353.GA20241@elte.hu> (raw)
In-Reply-To: <20080929182942.68fbb4fb@redhat.com>
* Chuck Ebbert <cebbert@redhat.com> wrote:
> From: Chuck Ebbert <cebbert@redhat.com>
>
> x86: move prefill_possible_map calling early, fix, V2
>
> fix:
>
> arch/x86/kernel/built-in.o: In function `setup_arch':
> : undefined reference to `prefill_possible_map'
>
> Fix this by making prefill_possible_map() available even when
> CONFIG_HOTPLUG_CPU is not set. The function is needed so that
> the number of possible CPUs can be determined.
>
> Tested on uniprocessor machine with CPU hotplug disabled.
> From boot log:
> Before: NR_CPUS: 512, nr_cpu_ids: 512, nr_node_ids 1
> After: NR_CPUS: 512, nr_cpu_ids: 1, nr_node_ids 1
applied to tip/x86/core, thanks Chuck! Made it a single delta patch, to
ease backporting.
Ingo
prev parent reply other threads:[~2008-09-30 7:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-29 22:27 [patch 1/2] revert: x86: move prefill_possible_map calling early, fix Chuck Ebbert
2008-09-29 22:29 ` [patch 2/2] x86: move prefill_possible_map calling early, fix, V2 Chuck Ebbert
2008-09-30 7:53 ` Ingo Molnar [this message]
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