scripts/atomic/fallbacks/inc_unless_negative

   1 cat <<EOF
   2 static __always_inline bool
   3 ${arch}${atomic}_inc_unless_negative(${atomic}_t *v)
   4 {
   5         ${int} c = ${arch}${atomic}_read(v);
   6
   7         do {
   8                 if (unlikely(c < 0))
   9                         return false;
  10         } while (!${arch}${atomic}_try_cmpxchg(v, &c, c + 1));
  11
  12         return true;
  13 }
  14 EOF