xref: /linux/scripts/atomic/fallbacks/fetch_add_unless (revision 19e13b0a6d080e65dd6d75cda63cb2f2f1605f89)
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