diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 1a1d2b5..d1a5e5d 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -129,45 +129,6 @@
 #endif
 }
 
-static int FNAME(cmpxchg_gpte)(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
-			       pt_element_t __user *ptep_user, unsigned index,
-			       pt_element_t orig_pte, pt_element_t new_pte)
-{
-	int r = -EFAULT;
-
-	if (!user_access_begin(ptep_user, sizeof(pt_element_t)))
-		return -EFAULT;
-
-#ifdef CMPXCHG
-	asm volatile("1:" LOCK_PREFIX CMPXCHG " %[new], %[ptr]\n"
-		     "mov $0, %[r]\n"
-		     "setnz %b[r]\n"
-		     "2:"
-		     _ASM_EXTABLE_UA(1b, 2b)
-		     : [ptr] "+m" (*ptep_user),
-		       [old] "+a" (orig_pte),
-		       [r] "+q" (r)
-		     : [new] "r" (new_pte)
-		     : "memory");
-#else
-	asm volatile("1:" LOCK_PREFIX "cmpxchg8b %[ptr]\n"
-		     "movl $0, %[r]\n"
-		     "jz 2f\n"
-		     "incl %[r]\n"
-		     "2:"
-		     _ASM_EXTABLE_UA(1b, 2b)
-		     : [ptr] "+m" (*ptep_user),
-		       [old] "+A" (orig_pte),
-		       [r] "+rm" (r)
-		     : [new_lo] "b" ((u32)new_pte),
-		       [new_hi] "c" ((u32)(new_pte >> 32))
-		     : "memory");
-#endif
-
-	user_access_end();
-	return r;
-}
-
 static bool FNAME(prefetch_invalid_gpte)(struct kvm_vcpu *vcpu,
 				  struct kvm_mmu_page *sp, u64 *spte,
 				  u64 gpte)
@@ -266,7 +227,7 @@
 		if (unlikely(!walker->pte_writable[level - 1]))
 			continue;
 
-		ret = FNAME(cmpxchg_gpte)(vcpu, mmu, ptep_user, index, orig_pte, pte);
+		ret = __try_cmpxchg_user(ptep_user, &orig_pte, pte, fault);
 		if (ret)
 			return ret;