scripts/atomic/fallbacks/inc_unless_negative


1
2
3
4
5
6
7
8
9
10
11
12
13
14

cat <<EOF
static __always_inline bool
raw_${atomic}_inc_unless_negative(${atomic}_t *v)
{
	${int} c = raw_${atomic}_read(v);

	do {
		if (unlikely(c < 0))
			return false;
	} while (!raw_${atomic}_try_cmpxchg(v, &c, c + 1));

	return true;
}
EOF