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[PATCH] x86_64: Fix swiotlb dma_alloc_coherent fallback

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This avoids BUG_ONs in the low level allocator when an illegal
GFP mask is added.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andi Kleen
2006-02-03 21:50:59 +01:00
committed by Linus Torvalds
parent 0dd2ea9af8
commit 6bca52b544
1 changed files with 3 additions and 0 deletions
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arch/x86_64/kernel/pci-dma.c
+3
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@@ -107,6 +107,9 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
goto again;
}
/* Let low level make its own zone decisions */
gfp &= ~(GFP_DMA32|GFP_DMA);
if (dma_ops->alloc_coherent)
return dma_ops->alloc_coherent(dev, size,
dma_handle, gfp);