Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
From: David Howells
Date: Wed Dec 06 2006 - 14:48:22 EST
Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx> wrote:
> > Pre-v6 ARM doesn't support SMP according to ARM's atomic.h,
>
> That's not quite true, there exist ARMv5 processors that in theory
> can support SMP.
I meant that the Linux ARM arch doesn't support it:
#else /* ARM_ARCH_6 */
#include <asm/system.h>
#ifdef CONFIG_SMP
#error SMP not supported on pre-ARMv6 CPUs
#endif
David
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