From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Date: Wed, 22 Dec 2010 22:28:41 +0000
Subject: Re: SPARC32 SMP IRQ15 question
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To: sparclinux@vger.kernel.org

From: Daniel Hellstrom <daniel@gaisler.com>
Date: Wed, 22 Dec 2010 14:23:27 +0100

> I will try to create a patch for the atomic layer for SMP LEON systems
> since they have the CASA instruction.

But see my other posting, you still have to fix the irq15 problem.

Merely switching to CASA doesn't mean you don't still have a problem
because spin_lock_irqsave() and other similar pieces of code expect
they will not be interrupted by smp_call_function() calls.