fs/dlm/dir.c

33 int dlm_hash2nodeid(struct dlm_ls *ls, uint32_t hash)
37 	if (ls->ls_num_nodes == 1)
40 		node = (hash >> 16) % ls->ls_total_weight;
41 		return ls->ls_node_array[node];
50 void dlm_recover_dir_nodeid(struct dlm_ls *ls)
54 	down_read(&ls->ls_root_sem);
55 	list_for_each_entry(r, &ls->ls_root_list, res_root_list) {
56 		r->res_dir_nodeid = dlm_hash2nodeid(ls, r->res_hash);
58 	up_read(&ls->ls_root_sem);
61 int dlm_recover_directory(struct dlm_ls *ls, uint64_t seq)
69 	log_rinfo(ls, "dlm_recover_directory");
71 	if (dlm_no_directory(ls))
78 	list_for_each_entry(memb, &ls->ls_nodes, list) {
87 			if (dlm_recovery_stopped(ls)) {
92 			error = dlm_rcom_names(ls, memb->nodeid,
103 			b = ls->ls_recover_buf->rc_buf;
104 			left = le16_to_cpu(ls->ls_recover_buf->rc_header.h_length);
134 				error = dlm_master_lookup(ls, memb->nodeid,
139 					log_error(ls, "recover_dir lookup %d",
152 					log_error(ls, "recover_dir lookup %d "
189 	dlm_set_recover_status(ls, DLM_RS_DIR);
191 	log_rinfo(ls, "dlm_recover_directory %u in %u new",
199 static struct dlm_rsb *find_rsb_root(struct dlm_ls *ls, const char *name,
207 	bucket = hash & (ls->ls_rsbtbl_size - 1);
209 	spin_lock(&ls->ls_rsbtbl[bucket].lock);
210 	rv = dlm_search_rsb_tree(&ls->ls_rsbtbl[bucket].keep, name, len, &r);
212 		rv = dlm_search_rsb_tree(&ls->ls_rsbtbl[bucket].toss,
214 	spin_unlock(&ls->ls_rsbtbl[bucket].lock);
219 	down_read(&ls->ls_root_sem);
220 	list_for_each_entry(r, &ls->ls_root_list, res_root_list) {
222 			up_read(&ls->ls_root_sem);
223 			log_debug(ls, "find_rsb_root revert to root_list %s",
228 	up_read(&ls->ls_root_sem);
236 void dlm_copy_master_names(struct dlm_ls *ls, const char *inbuf, int inlen,
244 	down_read(&ls->ls_root_sem);
247 		r = find_rsb_root(ls, inbuf, inlen);
249 			log_error(ls, "copy_master_names from %d start %d %.*s",
255 		list = ls->ls_root_list.next;
258 	for (offset = 0; list != &ls->ls_root_list; list = list->next) {
280 			ls->ls_recover_dir_sent_msg++;
289 		ls->ls_recover_dir_sent_res++;
297 	if ((list == &ls->ls_root_list) &&
302 		ls->ls_recover_dir_sent_msg++;
305 	up_read(&ls->ls_root_sem);