[linux-block.git] / scripts / atomic / fallbacks / dec_if_positive

cat <<EOF
	${int} dec, c = raw_${atomic}_read(v);

	do {
		dec = c - 1;
		if (unlikely(dec < 0))
			break;
	} while (!raw_${atomic}_try_cmpxchg(v, &c, dec));

	return dec;
EOF
Commit	Line	Data
	1	cat <<EOF
	2	${int} dec, c = raw_${atomic}_read(v);
	3
	4	do {
	5	dec = c - 1;
	6	if (unlikely(dec < 0))
	7	break;
	8	} while (!raw_${atomic}_try_cmpxchg(v, &c, dec));
	9
	10	return dec;
	11	EOF