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>>>>> "Bryan" == Bryan O'Sullivan <bos@pathscale.com> writes: Bryan> On some platforms, a regular wmb() is not sufficient to Bryan> guarantee that PCI writes have been flushed to the bus if write Bryan> combining is in effect. Bryan> This change introduces a new macro, wc_wmb(), that makes this Bryan> guarantee. Bryan, Could you explain why the current mmiowb() API won't suffice for this? It seems that this is basically trying to achieve the same thing. Cheers, Jes - 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/ | ||||||||||
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