From: Ingo Molnar <mingo@redhat.com>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Ben LaHaise <bcrl@redhat.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC] atomic pte updates and pae changes, take 2
Date: Sun, 15 Oct 2000 08:07:41 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.21.0010150802251.30587-100000@devserv.devel.redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.10.10010131841120.962-100000@penguin.transmeta.com>
On Fri, 13 Oct 2000, Linus Torvalds wrote:
> Ingo, I'd like you to comment on all the PAE issues just in case, but
> I personally don't have any real issues any more. [...]
there is one small thing apart of the issue Stephen noticed, barrier()
between the two 32-bit writes should IMO be smp_wmb() instead. It should
not make any difference on current x86 CPUs, but if any future x86 SMP
implementation relaxes memory ordering, it will be easier to sort things
out.
Ingo
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next prev parent reply other threads:[~2000-10-15 12:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-14 0:17 Ben LaHaise
2000-10-14 1:43 ` Linus Torvalds
2000-10-14 8:26 ` David S. Miller
2000-10-15 12:07 ` Ingo Molnar [this message]
2000-10-14 13:33 ` Stephen Tweedie
2000-10-15 12:01 ` Ingo Molnar
2000-10-19 20:16 ` oopses in test10-pre4 (was Re: [RFC] atomic pte updates and pae changes, take 3) Linus Torvalds
2000-10-20 5:44 ` Ben LaHaise
2000-10-20 17:18 ` Linus Torvalds
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