Quoting Neal H. Walfield (2014-05-13 09:44:21)
> At Mon, 12 May 2014 12:05:41 +0200,
> Justus Winter wrote:
> > +/* Decrement REF. Return the result of the operation. This function
> > + uses atomic operations. It is not required to serialize calls to
> > + this function. */
> > +static inline unsigned int
> > +refcount_deref (refcount_t *ref)
> > +{
> > + return __atomic_sub_fetch (ref, 1, __ATOMIC_RELAXED);
> > +}
>
> How about adding assert(*ref >= 0)?
It is there, you just can't see it because I optimized it away (as gcc
would, as refcount_t is unsigned ;).
Justus
