-static inline unsigned long
-copy_from_user(void *to, const void __user *from, unsigned long n)
-{
- if (likely(access_ok(VERIFY_READ, from, n)))
- n = __copy_from_user(to, from, n);
- else
- memset(to, 0, n);
- return n;
-}
-
-static inline unsigned long
-copy_to_user(void __user *to, const void *from, unsigned long n)
-{
- if (likely(access_ok(VERIFY_WRITE, to, n)))
- n = __copy_to_user(to, from, n);
- return n;
-}
-
-static inline unsigned long
-copy_in_user(void __user *to, const void __user *from, unsigned long n)
-{
- might_sleep();
- if (likely(access_ok(VERIFY_READ, from, n) &&
- access_ok(VERIFY_WRITE, to, n)))
- n =__copy_tofrom_user(to, from, n);
- return n;
-}
+extern unsigned long copy_from_user(void *to, const void __user *from,
+ unsigned long n);
+extern unsigned long copy_to_user(void __user *to, const void *from,
+ unsigned long n);
+extern unsigned long copy_in_user(void __user *to, const void __user *from,
+ unsigned long n);