Messages in this thread | | | Date | Fri, 27 Jan 2006 14:48:16 +0100 | From | Pierre Ossman <> | Subject | Re: How to map high memory for block io |
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Pierre Ossman wrote: > > Doesn't seem like a generic solution is easily implemented. I'll start > hacking together some way of specifying that highmem isn't supported so > that mmc_block can indicate this to the block layer. >
If I set the limit to BLK_BOUNCE_HIGH then (page_address(sg->page) + sg->offset) is guaranteed to be directly accessible for the entire sg->length on all architectures, right? This seems to be the assumption in the USB ub driver at least.
Rgds Pierre - 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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