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Message-ID: <18913.53699.544083.320542@cargo.ozlabs.ibm.com>
Date: Sun, 12 Apr 2009 21:34:27 +1000
From: Paul Mackerras <paulus@samba.org>
To: paulmck@linux.vnet.ibm.com
Cc: Ingo Molnar <mingo@elte.hu>,
       Linus Torvalds <torvalds@linux-foundation.org>,
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       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
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       benh@kernel.crashing.org
Subject: Re: iptables very slow after commit
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Paul E. McKenney writes:

> If the generic implementation is needed only on !SMP systems, that
> could work.  The architectures I would be worried about include
> powerpc and ia64, which I believe support 32-bit SMP builds.

32-bit powerpc doesn't have 64-bit atomic operations and does support
SMP.

What about ARM?  I thought they had 32-bit SMP these days as well.

Paul.
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