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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-12-05 23:20:17 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-12-05 23:20:17 +0000
commit742eaa6a6e356a16788ce6530271de89bc4f8fb5 (patch)
tree12fc040daab06ac796c61c1d92bfad9bb054d1c1 /arch/arm/mm/dma-mapping.c
parentba8bb18a03f8c7508565c385576a5431a4ad804a (diff)
parentae72fd588a2b302222769b44775912b83f0785eb (diff)
Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into devel-stable
Conflicts: arch/arm/common/gic.c arch/arm/plat-omap/include/plat/common.h
Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
-rw-r--r--arch/arm/mm/dma-mapping.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index e4e7f6cba1a..1aa664a1999 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -168,7 +168,7 @@ static int __init consistent_init(void)
pte_t *pte;
int i = 0;
unsigned long base = consistent_base;
- unsigned long num_ptes = (CONSISTENT_END - base) >> PGDIR_SHIFT;
+ unsigned long num_ptes = (CONSISTENT_END - base) >> PMD_SHIFT;
consistent_pte = kmalloc(num_ptes * sizeof(pte_t), GFP_KERNEL);
if (!consistent_pte) {
@@ -332,6 +332,15 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
struct page *page;
void *addr;
+ /*
+ * Following is a work-around (a.k.a. hack) to prevent pages
+ * with __GFP_COMP being passed to split_page() which cannot
+ * handle them. The real problem is that this flag probably
+ * should be 0 on ARM as it is not supported on this
+ * platform; see CONFIG_HUGETLBFS.
+ */
+ gfp &= ~(__GFP_COMP);
+
*handle = ~0;
size = PAGE_ALIGN(size);