From: Christoph Lameter <christoph@engr.sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: ak@suse.de, linux-mm@vger.kernel.org
Subject: Re: ZVC: Scale thresholds depending on the size of the system
Date: Mon, 21 Aug 2006 14:42:43 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0608211441160.20201@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20060821141619.65e20b59.akpm@osdl.org>
On Mon, 21 Aug 2006, Andrew Morton wrote:
> One day we'll need to stop adding code which is racy wrt cpu hotplug.
>
> But now is not the time - once we've 100%-decided how to do that, some
> brave person can start doing cross-kernel sweeps. I _think_ the way we'll
> do this is in places like this one is preempt_disable(), but that's not
> 100% certain.
It may be best to have rw semaphore that needs to be taken and work that
into the for_each_cpu/for_each_zone or setup a new macro.
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prev parent reply other threads:[~2006-08-21 21:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-20 1:54 Christoph Lameter
[not found] ` <20060821141619.65e20b59.akpm@osdl.org>
2006-08-21 21:42 ` Christoph Lameter [this message]
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