diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index c6acc6326374..0482fa649738 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -951,11 +951,11 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	tsk = current;
 	mm = tsk->mm;
 
-	prefetchw(&mm->mmap_sem);
-
 	/* Get the faulting address: */
 	address = read_cr2();
 
+	prefetchw(&mm->mmap_sem);
+
 	if (unlikely(kmmio_fault(regs, address)))
 		return;