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[PATCH] [37/66] x86_64: Don't invoke OOM killer during dma_alloc_coherent()



There is a fallback logic, so it's better to not use the OOM killer
in the allocations.

Signed-off-by: Andi Kleen <ak@xxxxxxx>

---
 arch/x86_64/kernel/pci-dma.c |    3 +++
 1 files changed, 3 insertions(+)

Index: linux/arch/x86_64/kernel/pci-dma.c
===================================================================
--- linux.orig/arch/x86_64/kernel/pci-dma.c
+++ linux/arch/x86_64/kernel/pci-dma.c
@@ -73,6 +73,9 @@ dma_alloc_coherent(struct device *dev, s
 	if (dma_mask == 0)
 		dma_mask = 0xffffffff;
 
+	/* Don't invoke OOM killer */
+	gfp |= __GFP_NORETRY;
+
 	/* Kludge to make it bug-to-bug compatible with i386. i386
 	   uses the normal dma_mask for alloc_coherent. */
 	dma_mask &= *dev->dma_mask;
-
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