Messages in this thread | | | Date | Mon, 10 Jul 2006 17:26:00 +0100 | From | Russell King <> | Subject | Re: DMA memory, split_page, BUG_ON(PageCompound()), sound |
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On Mon, Jul 10, 2006 at 04:59:48PM +1000, Nick Piggin wrote: > I guess you could do it a number of ways. Maybe having GFP_USERMAP > set __GFP_USERMAP|__GFP_COMP, and the arm dma memory allocator can > strip the __GFP_COMP. > > If you get an explicit __GFP_COMP passed down, the allocator doesn't > know whether that was because they want a user mappable area, or > really want a compound page (in which case, stripping __GFP_COMP is > the wrong thing to do).
So I'll mask off __GFP_COMP for the time being in the ARM dma allocator with a note to this effect?
-- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core - 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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