From: Paul Jackson <pj@sgi.com>
To: Chuck Ebbert <76306.1226@compuserve.com>
Cc: akpm@osdl.org, heiko.carstens@de.ibm.com, wli@holomorphy.com,
ak@muc.de, mingo@elte.hu, torvalds@osdl.org,
linux-kernel@vger.kernel.org, riel@redhat.com,
dada1@cosmobay.com
Subject: Re: [PATCH] percpu data: only iterate over possible CPUs
Date: Thu, 9 Feb 2006 00:55:53 -0800 [thread overview]
Message-ID: <20060209005553.088a2a78.pj@sgi.com> (raw)
In-Reply-To: <200602090335_MC3-1-B7FA-621E@compuserve.com>
Chuck wrote:
> I don't think that's, um, "possible." Even if you could discover how many
> empty sockets there were in a system, someone might be able to hotplug
> a board with more of them on it.
That's going to depend on your system hardware configuration.
cpu_possible_map should be whatever is the largest set of
cpus you might possibly want to deal with plugging in.
Some hardware configurations will support more addition
of hardware cpus than others.
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.925.600.0401
next prev parent reply other threads:[~2006-02-09 8:56 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-09 8:32 [PATCH] percpu data: only iterate over possible CPUs Chuck Ebbert
2006-02-09 8:55 ` Paul Jackson [this message]
2006-02-09 9:06 ` Andrew Morton
2006-02-09 9:11 ` Andrew Morton
2006-02-09 10:08 ` Heiko Carstens
2006-02-09 10:13 ` Andrew Morton
2006-02-09 10:23 ` Heiko Carstens
2006-02-09 10:31 ` Andrew Morton
2006-02-09 11:47 ` Heiko Carstens
2006-02-09 12:46 ` Eric Dumazet
2006-02-09 13:12 ` Heiko Carstens
2006-02-09 13:55 ` Eric Dumazet
[not found] <200602051959.k15JxoHK001630@hera.kernel.org>
2006-02-07 15:15 ` Heiko Carstens
2006-02-07 15:31 ` Jens Axboe
2006-02-07 16:25 ` Eric Dumazet
2006-02-07 16:42 ` Linus Torvalds
2006-02-07 17:34 ` Andrew Morton
2006-02-07 17:48 ` Linus Torvalds
2006-02-07 18:30 ` Dipankar Sarma
2006-02-07 18:43 ` Linus Torvalds
2006-02-07 18:53 ` Dipankar Sarma
2006-02-07 19:11 ` Linus Torvalds
2006-02-08 4:40 ` Heiko Carstens
2006-02-08 8:55 ` Ivan Kokshaysky
2006-02-08 22:31 ` Rik van Riel
2006-02-09 1:20 ` Rik van Riel
2006-02-09 1:20 ` Rik van Riel
2006-02-09 3:05 ` Andrew Morton
2006-02-09 3:08 ` Andrew Morton
2006-02-09 4:36 ` Eric Dumazet
2006-02-09 4:45 ` Andrew Morton
2006-02-09 4:56 ` Paul Jackson
2006-02-09 16:08 ` Nathan Lynch
2006-02-09 16:13 ` Heiko Carstens
2006-02-09 16:38 ` Rik van Riel
2006-02-09 16:59 ` Nathan Lynch
2006-02-09 17:37 ` Andi Kleen
2006-02-10 10:05 ` Heiko Carstens
2006-02-10 10:13 ` Andi Kleen
2006-02-11 14:49 ` Heiko Carstens
2006-02-11 18:04 ` Andi Kleen
2006-02-09 17:03 ` Ashok Raj
2006-02-09 17:23 ` Nathan Lynch
2006-02-09 18:04 ` Andrew Morton
2006-02-09 18:52 ` Ashok Raj
2006-02-09 20:37 ` Andrew Morton
2006-02-09 21:03 ` Ashok Raj
2006-02-10 10:02 ` Andi Kleen
2006-02-10 10:42 ` Andrew Morton
2006-02-10 11:09 ` Eric Dumazet
2006-02-10 11:23 ` Andrew Morton
2006-02-10 11:26 ` Andrew Morton
2006-02-10 14:13 ` Eric Dumazet
2006-02-11 0:10 ` Nathan Lynch
2006-02-11 0:25 ` Andrew Morton
2006-02-10 12:10 ` Andi Kleen
2006-02-10 19:08 ` Andrew Morton
2006-02-09 4:39 ` Eric Dumazet
2006-02-09 4:46 ` Nick Piggin
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