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authorLinus Torvalds <torvalds@linux-foundation.org>2013-03-15 17:35:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-15 17:35:03 -0700
commitc7f17deb316e41a9db28d7486f4067d06d68ebf0 (patch)
tree979178b5f58b4f2378824df31974387d03048a52
parentde1893f64045ab476060bd09fb9f3bc35d7b7b57 (diff)
parent9d1400cf79afb49584b4873eb22cd5130cb341db (diff)
Merge branch 'fixes-for-3.9' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull DMA-mapping fix from Marek Szyprowski: "An important fix for all ARM architectures which use ZONE_DMA. Without it dma_alloc_* calls with GFP_ATOMIC flag might have allocated buffers outsize DMA zone." * 'fixes-for-3.9' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping: ARM: DMA-mapping: add missing GFP_DMA flag for atomic buffer allocation
-rw-r--r--arch/arm/mm/dma-mapping.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index c7e3759f16d3..e9db6b4bf65a 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -342,6 +342,7 @@ static int __init atomic_pool_init(void)
{
struct dma_pool *pool = &atomic_pool;
pgprot_t prot = pgprot_dmacoherent(pgprot_kernel);
+ gfp_t gfp = GFP_KERNEL | GFP_DMA;
unsigned long nr_pages = pool->size >> PAGE_SHIFT;
unsigned long *bitmap;
struct page *page;
@@ -361,8 +362,8 @@ static int __init atomic_pool_init(void)
ptr = __alloc_from_contiguous(NULL, pool->size, prot, &page,
atomic_pool_init);
else
- ptr = __alloc_remap_buffer(NULL, pool->size, GFP_KERNEL, prot,
- &page, atomic_pool_init);
+ ptr = __alloc_remap_buffer(NULL, pool->size, gfp, prot, &page,
+ atomic_pool_init);
if (ptr) {
int i;

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