Re: [RFC] New locking primitive for 2.5

From: Benjamin Herrenschmidt (benh@kernel.crashing.org)
Date: Fri Feb 08 2002 - 16:40:12 EST


>Are there architectures out there that absolutely must implement this
>with a spinlock? Your suggested API of functions to read/write 64-bit
>values atomically would work for such a case, but still I am just
>curious.

At least PPC32 can't do that without a spinlock_irq

Ben.

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