- spin_lock(&capa_lock);
- old = find_capa(head, uid, capa_op, mdsid, ino, type);
- if (!old) {
- memcpy(&ocapa->c_capa, capa, sizeof(*capa));
- ocapa->c_type = type;
- if (type == CLIENT_CAPA) {
- LASSERT(inode);
- igrab(inode);
- ocapa->c_inode = inode;
- memcpy(&ocapa->c_handle, handle, sizeof(*handle));
- }
- list_add_capa(ocapa, &capa_list[type]);
- hlist_add_head(&ocapa->c_hash, capa_hash);
- capa_count[type]++;
- DEBUG_CAPA(D_CACHE, ocapa, "get_new_capa_locked");
- __capa_get(ocapa);
- if (type != CLIENT_CAPA && capa_count[type] > CAPA_CACHE_SIZE) {
- struct list_head *node = capa_list[type].next;
- struct obd_capa *tcapa;
- int count = 0;
-
- /* free 12 unused capa from head */
- while (node->next != &capa_list[type] && count < 12) {
- tcapa = list_entry(node, struct obd_capa, c_list);
- node = node->next;
- if (atomic_read(&tcapa->c_refc) > 0)
- continue;
- list_del(&tcapa->c_list);
- destroy_capa(tcapa);
- count++;
- }
- }
-
- spin_unlock(&capa_lock);
- RETURN(ocapa);