On Thu, Aug 02, 2007 at 01:00:21AM +0200, Mikael Pettersson wrote:
> @@ -52,7 +53,34 @@ futex_atomic_op_inuser (int encoded_op,
> static inline int
> futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
> {
> +#ifdef CONFIG_SMP
> return -ENOSYS;
> +#else
Since the callers of futex_atomic_cmpxchg_inatomic() don't really
seem prepared to deal with -ENOSYS (e.g. the handle_futex_death()
infinite loop when it gets -ENOSYS), it seems better never to
return -ENOSYS from this function at all.
What if you just stick an #error in here in the SMP case?
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