Messages in this thread | | | From | Andi Kleen <> | Subject | Re: DMA32 zone unusable | Date | Wed, 16 Nov 2005 16:53:06 +0100 |
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On Wednesday 16 November 2005 16:22, Mika Penttilä wrote: > The new DMA32 zone (which at least x86-64 has) is quite "interesting" : > > #define __GFP_DMA32 ((__force gfp_t)0x04) <-----!!!!! > > #define GFP_ZONEMASK 0x03 <------!!!!! > > #define gfp_zone(mask) ((__force int)((mask) & (__force gfp_t)GFP_ZONEMASK))
Yes that was a last minute change that was wrong. I will submit an update. Thanks for reviewing.
-Andi
> static inline struct page *alloc_pages_node(int nid, gfp_t gfp_mask, > unsigned int order) > { > if (unlikely(order >= MAX_ORDER)) > return NULL; > > return __alloc_pages(gfp_mask, order, > NODE_DATA(nid)->node_zonelists + gfp_zone(gfp_mask)); > } > > > So with GFP_DMA32 you never get those pages (but DMA instead). > > --Mika > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a> > - 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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