Messages in this thread | | | Date | Fri, 07 Jul 2006 02:40:35 +1000 | From | Nick Piggin <> | Subject | Re: [patch] spinlocks: remove 'volatile' |
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linux-os (Dick Johnson) wrote:
> http://en.wikipedia.org/wiki/Memory_barrier > > This is used to prevent out-of-order execution, not at all what is > necessary.
I don't think memory barriers prevent out of order execution, just out of order loads and stores (which could happen on CPUs that do in-order execution).
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