arm64: mm: fix pmd_write CoW brokenness

[firefly-linux-kernel-4.4.55.git] / arch / arm64 / include / asm / pgtable.h

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 548c4201b17ec88b93edb1d17fedf61ed3c9d38c..3991d583c067317b97273c58252593f734f68d2b 100644 (file)
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -260,7 +260,7 @@ static inline pmd_t pte_pmd(pte_t pte)
 
 #define pmd_page(pmd)           pfn_to_page(__phys_to_pfn(pmd_val(pmd) & PHYS_MASK))
 
-#define set_pmd_at(mm, addr, pmdp, pmd)        set_pmd(pmdp, pmd)
+#define set_pmd_at(mm, addr, pmdp, pmd)        set_pte_at(mm, addr, (pte_t *)pmdp, pmd_pte(pmd))
 
 static inline int has_transparent_hugepage(void)
 {