xref: /linux/scripts/atomic/fallbacks/fetch_add_unless (revision bea00fab2b0e5359ee88a2b127f15a35cd48872b)
1cat << EOF
2	${int} c = raw_${atomic}_read(v);
3
4	do {
5		if (unlikely(c == u))
6			break;
7	} while (!raw_${atomic}_try_cmpxchg(v, &c, c + a));
8
9	return c;
10EOF
11