1cat <<EOF
2static __always_inline bool
3${arch}${atomic}_dec_unless_positive(${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}
14EOF
15