> Of course, the normal memory barrier would usually be a "spin_unlock()" or > something like that, not a "wmb()". In fact, I don't think the powerpc > implementation (as an example of this) will actually synchronize with > anything *but* a spin_unlock(). We are even more sneaky in the sense that we set a per-cpu flag on any MMIO write and do the sync automatically in spin_unlock() :-) Ben. - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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