23 	char __user *usermem;  in copy_user_test()  local
31 	usermem = (char __user *)vm_mmap(NULL, 0, PAGE_SIZE,  in copy_user_test()
34 	if (IS_ERR(usermem)) {  in copy_user_test()
41 	unused = copy_from_user(kmem, usermem, size + 1 + OOB_TAG_OFF);  in copy_user_test()
44 	unused = copy_to_user(usermem, kmem, size + 1 + OOB_TAG_OFF);  in copy_user_test()
47 	unused = __copy_from_user(kmem, usermem, size + 1 + OOB_TAG_OFF);  in copy_user_test()
50 	unused = __copy_to_user(usermem, kmem, size + 1 + OOB_TAG_OFF);  in copy_user_test()
53 	unused = __copy_from_user_inatomic(kmem, usermem, size + 1 + OOB_TAG_OFF);  in copy_user_test()
56 	unused = __copy_to_user_inatomic(usermem, kmem, size + 1 + OOB_TAG_OFF);  in copy_user_test()
59 	unused = strncpy_from_user(kmem, usermem, size + 1 + OOB_TAG_OFF);  in copy_user_test()
61 	vm_munmap((unsigned long)usermem, PAGE_SIZE);  in copy_user_test()