1 files changed, 7 insertions, 4 deletions

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 6c55fbdbd7e8..a629cea5e465 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -221,8 +221,7 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 {
         pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte));
         gfp_t gfp_flags = GFP_KERNEL;
-        unsigned long flags;
-        unsigned long addr;
+        unsigned long flags, addr, pfn;
         pte_t *pbase, *tmp;
         struct page *base;
         unsigned int i, level;
@@ -253,8 +252,12 @@ static int split_large_page(pte_t *kpte, unsigned long address)
         paravirt_alloc_pt(&init_mm, page_to_pfn(base));
 #endif
 
-        for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
-                set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
+        /*
+         * Get the target pfn from the original entry:
+         */
+        pfn = pte_pfn(*kpte);
+        for (i = 0; i < PTRS_PER_PTE; i++, pfn++)
+                set_pte(&pbase[i], pfn_pte(pfn, ref_prot));
 
         /*
          * Install the new, split up pagetable. Important detail here: