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-rw-r--r--arch/mips/mm/gup.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/mm/gup.c b/arch/mips/mm/gup.c
index d4ea5c9..06ce17c 100644
--- a/arch/mips/mm/gup.c
+++ b/arch/mips/mm/gup.c
@@ -12,6 +12,7 @@
#include <linux/swap.h>
#include <linux/hugetlb.h>
+#include <asm/cpu-features.h>
#include <asm/pgtable.h>
static inline pte_t gup_get_pte(pte_t *ptep)
@@ -273,7 +274,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
len = (unsigned long) nr_pages << PAGE_SHIFT;
end = start + len;
- if (end < start)
+ if (end < start || cpu_has_dc_aliases)
goto slow_irqon;
/* XXX: batch / limit 'nr' */
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