[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
ace9bad4	1	cat <<EOF
9257959a	2	${int} dec, c = raw_${atomic}_read(v);
ace9bad4 MR	3
	4	do {
	5	dec = c - 1;
	6	if (unlikely(dec < 0))
	7	break;
9257959a	8	} while (!raw_${atomic}_try_cmpxchg(v, &c, dec));
ace9bad4 MR	9
ace9bad4 MR	10	return dec;
ace9bad4	11	EOF