struct auth_domain *
auth_domain_lookup(struct auth_domain *item, int set)
{
struct auth_domain *tmp = NULL;
struct cache_head **hp, **head;
head = &auth_domain_cache.hash_table[auth_domain_hash(item)];
if (set)
write_lock(&auth_domain_cache.hash_lock);
else
read_lock(&auth_domain_cache.hash_lock);
for (hp=head; *hp != NULL; hp = &tmp->h.next) {
tmp = container_of(*hp, struct auth_domain, h);
if (!auth_domain_match(tmp, item))
continue;
cache_get(&tmp->h);
if (!set)
goto out_noset;
*hp = tmp->h.next;
tmp->h.next = NULL;
clear_bit(CACHE_HASHED, &tmp->h.flags);
auth_domain_drop(&tmp->h, &auth_domain_cache);
goto out_set;
}
/* Didn't find anything */
if (!set)
goto out_nada;
auth_domain_cache.entries++;
out_set:
set_bit(CACHE_HASHED, &item->h.flags);
item->h.next = *head;
*head = &item->h;
write_unlock(&auth_domain_cache.hash_lock);
cache_fresh(&auth_domain_cache, &item->h, item->h.expiry_time);
cache_get(&item->h);
return item;
out_nada:
tmp = NULL;
out_noset:
read_unlock(&auth_domain_cache.hash_lock);
return tmp;
}
void auth_domain_put(struct auth_domain *dom)
{
auth_domain_drop(&dom->h, &auth_domain_cache);
}
