scripts/atomic/fallbacks/inc_unless_negative

   1 cat <<EOF
   2         ${int} c = raw_${atomic}_read(v);
   3
   4         do {
   5                 if (unlikely(c < 0))
   6                         return false;
   7         } while (!raw_${atomic}_try_cmpxchg(v, &c, c + 1));
   8
   9         return true;
  10 EOF