sbitmap: warn if using smaller shallow depth than was setup (61445b56) · Commits · 戴 / test

Make sure the user passed the right value to sbitmap_queue_min_shallow_depth(). Acked-by:

lib/sbitmap.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -402,6 +402,8 @@ int __sbitmap_queue_get_shallow(struct sbitmap_queue *sbq,
	unsigned int hint, depth;		unsigned int hint, depth;
	int nr;		int nr;

			WARN_ON_ONCE(shallow_depth < sbq->min_shallow_depth);

	hint = this_cpu_read(*sbq->alloc_hint);		hint = this_cpu_read(*sbq->alloc_hint);
	depth = READ_ONCE(sbq->sb.depth);		depth = READ_ONCE(sbq->sb.depth);
	if (unlikely(hint >= depth)) {		if (unlikely(hint >= depth)) {