Re: [RFC] New locking primitive for 2.5

Benjamin Herrenschmidt
2002-02-09T10:57:47Z

>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.