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authorAndi Kleen <ak@suse.de>2006-02-03 21:50:59 +0100
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-04 16:43:13 -0800
commit6bca52b544489b626c7d0db801df6b4aa3d5adb5 (patch)
tree6011b1cec5ffae37ed499013908e38cbdeaf651b
parent0dd2ea9af8f0eca43cf6200baa182b3aba307049 (diff)
[PATCH] x86_64: Fix swiotlb dma_alloc_coherent fallback
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>
-rw-r--r--arch/x86_64/kernel/pci-dma.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/pci-dma.c b/arch/x86_64/kernel/pci-dma.c
index 2f5d8328e2b..4ed391edd47 100644
--- a/arch/x86_64/kernel/pci-dma.c
+++ b/arch/x86_64/kernel/pci-dma.c
@@ -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);