-static inline int
-futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
-{
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
- __asm__ __volatile__(
- "1: " LOCK_PREFIX "cmpxchgl %3, %1 \n"
-
- "2: .section .fixup, \"ax\" \n"
- "3: mov %2, %0 \n"
- " jmp 2b \n"
- " .previous \n"
-
- " .section __ex_table, \"a\" \n"
- " .align 8 \n"
- " .quad 1b,3b \n"
- " .previous \n"
-
- : "=a" (oldval), "=m" (*uaddr)
- : "i" (-EFAULT), "r" (newval), "0" (oldval)
- : "memory"
- );
-
- return oldval;
-}
-