Function cache_neg_promote_locked

freebsd/kern/vfs_cache.c:1138–1153

* Move a negative entry to the hot list. */

 * Move a negative entry to the hot list.
 */
static void
cache_neg_promote_locked(struct namecache *ncp)
{
	struct neglist *nl;
	struct negstate *ns;

	ns = NCP2NEGSTATE(ncp);
	nl = NCP2NEGLIST(ncp);
	mtx_assert(&nl->nl_lock, MA_OWNED);
	if ((ns->neg_flag & NEG_HOT) == 0) {
		TAILQ_REMOVE(&nl->nl_list, ncp, nc_dst);
		TAILQ_INSERT_TAIL(&nl->nl_hotlist, ncp, nc_dst);
		nl->nl_hotnum++;
		ns->neg_flag |= NEG_HOT;
	}
}

/*
 * Move a hot negative entry to the cold list.