> no, the spin_lock only acts as a barrier in one way, not both ways, so
> an smp_something is still needed.
>
Can you explain this more? On a x86, isn't a spin_lock a lock; dec
instruction and the rmb() a lock; addl. I thought x86 instructions
with lock prefix provided a memory barrier.
Just curious,
-- Daniel McNeil <daniel@osdl.org>- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/