Function cache_bucket_unload

freebsd/vm/uma_core.c:777–791

* Unload a UMA bucket from a per-cpu cache. */

 * Unload a UMA bucket from a per-cpu cache.
 */
static inline uma_bucket_t
cache_bucket_unload(uma_cache_bucket_t bucket)
{
	uma_bucket_t b;

	b = bucket->ucb_bucket;
	if (b != NULL) {
		MPASS(b->ub_entries == bucket->ucb_entries);
		b->ub_cnt = bucket->ucb_cnt;
		bucket->ucb_bucket = NULL;
		bucket->ucb_entries = bucket->ucb_cnt = 0;
	}

	return (b);
}

static inline uma_bucket_t
cache_bucket_unload_alloc(uma_cache_t cache)