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path: root/scripts/atomic/fallbacks/dec_unless_positive
blob: c531d5afecc476cef51b8a3eff2f36c461d0907c (plain)
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cat <<EOF
static __always_inline bool
arch_${atomic}_dec_unless_positive(${atomic}_t *v)
{
	${int} c = arch_${atomic}_read(v);

	do {
		if (unlikely(c > 0))
			return false;
	} while (!arch_${atomic}_try_cmpxchg(v, &c, c - 1));

	return true;
}
EOF