xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Merge branch 'linus' into x86/cleanups

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This commit is contained in:
Ingo Molnar
2008-06-16 11:17:50 +02:00
parent bf07dc8649 066519068a
commit 1791a78c0b
933 changed files with 13675 additions and 7303 deletions
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14
arch/x86/kernel/pci-dma.c
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@@ -378,6 +378,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
struct page *page;
unsigned long dma_mask = 0;
dma_addr_t bus;
int noretry = 0;
/* ignore region specifiers */
gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
@@ -397,20 +398,25 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
if (dev->dma_mask == NULL)
return NULL;
/* Don't invoke OOM killer */
gfp |= __GFP_NORETRY;
/* Don't invoke OOM killer or retry in lower 16MB DMA zone */
if (gfp & __GFP_DMA)
noretry = 1;
#ifdef CONFIG_X86_64
/* Why <=? Even when the mask is smaller than 4GB it is often
larger than 16MB and in this case we have a chance of
finding fitting memory in the next higher zone first. If
not retry with true GFP_DMA. -AK */
if (dma_mask <= DMA_32BIT_MASK && !(gfp & GFP_DMA))
if (dma_mask <= DMA_32BIT_MASK && !(gfp & GFP_DMA)) {
gfp |= GFP_DMA32;
if (dma_mask < DMA_32BIT_MASK)
noretry = 1;
}
#endif
again:
page = dma_alloc_pages(dev, gfp, get_order(size));
page = dma_alloc_pages(dev,
noretry ? gfp | __GFP_NORETRY : gfp, get_order(size));
if (page == NULL)
return NULL;