.align 8\n\
.long 1b,3b\n\
.previous" \
- : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
- : "i" (-EFAULT), "0" (oparg), "1" (0))
+ : "=r" (oldval), "=r" (ret), "=m" (*uaddr) \
+ : "i" (-EFAULT), "m" (*uaddr), "0" (oparg), "1" (0))
#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
__asm__ __volatile ( \
.align 8\n\
.long 1b,4b,2b,4b\n\
.previous" \
- : "=&a" (oldval), "=&r" (ret), "+m" (*uaddr), \
+ : "=&a" (oldval), "=&r" (ret), "=m" (*uaddr), \
"=&r" (tem) \
- : "r" (oparg), "i" (-EFAULT), "1" (0))
+ : "r" (oparg), "i" (-EFAULT), "m" (*uaddr), "1" (0))
static inline int
futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
return ret;
}
-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"
- " .long 1b,3b \n"
- " .previous \n"
-
- : "=a" (oldval), "+m" (*uaddr)
- : "i" (-EFAULT), "r" (newval), "0" (oldval)
- : "memory"
- );
-
- return oldval;
-}
-
#endif
#endif