31 static int enable_locking(struct dlm_ls *ls, uint64_t seq)  in enable_locking()  argument
35 	down_write(&ls->ls_recv_active);  in enable_locking()
37 	spin_lock(&ls->ls_recover_lock);  in enable_locking()
38 	if (ls->ls_recover_seq == seq) {  in enable_locking()
39 		set_bit(LSFL_RUNNING, &ls->ls_flags);  in enable_locking()
41 		up_write(&ls->ls_in_recovery);  in enable_locking()
42 		clear_bit(LSFL_RECOVER_LOCK, &ls->ls_flags);  in enable_locking()
45 	spin_unlock(&ls->ls_recover_lock);  in enable_locking()
47 	up_write(&ls->ls_recv_active);  in enable_locking()
51 static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)  in ls_recover()  argument
56 	log_rinfo(ls, "dlm_recover %llu", (unsigned long long)rv->seq);  in ls_recover()
58 	mutex_lock(&ls->ls_recoverd_active);  in ls_recover()
60 	dlm_callback_suspend(ls);  in ls_recover()
62 	dlm_clear_toss(ls);  in ls_recover()
69 	dlm_create_root_list(ls);  in ls_recover()
79 	error = dlm_recover_members(ls, rv, &neg);  in ls_recover()
81 		log_rinfo(ls, "dlm_recover_members error %d", error);  in ls_recover()
85 	dlm_recover_dir_nodeid(ls);  in ls_recover()
87 	ls->ls_recover_dir_sent_res = 0;  in ls_recover()
88 	ls->ls_recover_dir_sent_msg = 0;  in ls_recover()
89 	ls->ls_recover_locks_in = 0;  in ls_recover()
91 	dlm_set_recover_status(ls, DLM_RS_NODES);  in ls_recover()
93 	error = dlm_recover_members_wait(ls, rv->seq);  in ls_recover()
95 		log_rinfo(ls, "dlm_recover_members_wait error %d", error);  in ls_recover()
106 	error = dlm_recover_directory(ls, rv->seq);  in ls_recover()
108 		log_rinfo(ls, "dlm_recover_directory error %d", error);  in ls_recover()
112 	dlm_set_recover_status(ls, DLM_RS_DIR);  in ls_recover()
114 	error = dlm_recover_directory_wait(ls, rv->seq);  in ls_recover()
116 		log_rinfo(ls, "dlm_recover_directory_wait error %d", error);  in ls_recover()
120 	log_rinfo(ls, "dlm_recover_directory %u out %u messages",  in ls_recover()
121 		  ls->ls_recover_dir_sent_res, ls->ls_recover_dir_sent_msg);  in ls_recover()
129 	dlm_recover_waiters_pre(ls);  in ls_recover()
131 	if (dlm_recovery_stopped(ls)) {  in ls_recover()
136 	if (neg || dlm_no_directory(ls)) {  in ls_recover()
141 		dlm_recover_purge(ls);  in ls_recover()
148 		error = dlm_recover_masters(ls, rv->seq);  in ls_recover()
150 			log_rinfo(ls, "dlm_recover_masters error %d", error);  in ls_recover()
158 		error = dlm_recover_locks(ls, rv->seq);  in ls_recover()
160 			log_rinfo(ls, "dlm_recover_locks error %d", error);  in ls_recover()
164 		dlm_set_recover_status(ls, DLM_RS_LOCKS);  in ls_recover()
166 		error = dlm_recover_locks_wait(ls, rv->seq);  in ls_recover()
168 			log_rinfo(ls, "dlm_recover_locks_wait error %d", error);  in ls_recover()
172 		log_rinfo(ls, "dlm_recover_locks %u in",  in ls_recover()
173 			  ls->ls_recover_locks_in);  in ls_recover()
181 		dlm_recover_rsbs(ls);  in ls_recover()
188 		dlm_set_recover_status(ls, DLM_RS_LOCKS);  in ls_recover()
190 		error = dlm_recover_locks_wait(ls, rv->seq);  in ls_recover()
192 			log_rinfo(ls, "dlm_recover_locks_wait error %d", error);  in ls_recover()
197 	dlm_release_root_list(ls);  in ls_recover()
205 	dlm_purge_requestqueue(ls);  in ls_recover()
207 	dlm_set_recover_status(ls, DLM_RS_DONE);  in ls_recover()
209 	error = dlm_recover_done_wait(ls, rv->seq);  in ls_recover()
211 		log_rinfo(ls, "dlm_recover_done_wait error %d", error);  in ls_recover()
215 	dlm_clear_members_gone(ls);  in ls_recover()
217 	dlm_callback_resume(ls);  in ls_recover()
219 	error = enable_locking(ls, rv->seq);  in ls_recover()
221 		log_rinfo(ls, "enable_locking error %d", error);  in ls_recover()
225 	error = dlm_process_requestqueue(ls);  in ls_recover()
227 		log_rinfo(ls, "dlm_process_requestqueue error %d", error);  in ls_recover()
231 	error = dlm_recover_waiters_post(ls);  in ls_recover()
233 		log_rinfo(ls, "dlm_recover_waiters_post error %d", error);  in ls_recover()
237 	dlm_recover_grant(ls);  in ls_recover()
239 	log_rinfo(ls, "dlm_recover %llu generation %u done: %u ms",  in ls_recover()
240 		  (unsigned long long)rv->seq, ls->ls_generation,  in ls_recover()
242 	mutex_unlock(&ls->ls_recoverd_active);  in ls_recover()
247 	dlm_release_root_list(ls);  in ls_recover()
248 	mutex_unlock(&ls->ls_recoverd_active);  in ls_recover()
257 static void do_ls_recovery(struct dlm_ls *ls)  in do_ls_recovery()  argument
262 	spin_lock(&ls->ls_recover_lock);  in do_ls_recovery()
263 	rv = ls->ls_recover_args;  in do_ls_recovery()
264 	ls->ls_recover_args = NULL;  in do_ls_recovery()
265 	if (rv && ls->ls_recover_seq == rv->seq)  in do_ls_recovery()
266 		clear_bit(LSFL_RECOVER_STOP, &ls->ls_flags);  in do_ls_recovery()
267 	spin_unlock(&ls->ls_recover_lock);  in do_ls_recovery()
270 		error = ls_recover(ls, rv);  in do_ls_recovery()
273 			ls->ls_recovery_result = 0;  in do_ls_recovery()
274 			complete(&ls->ls_recovery_done);  in do_ls_recovery()
276 			dlm_lsop_recover_done(ls);  in do_ls_recovery()
282 			log_rinfo(ls, "%s %llu interrupted and should be queued to run again",  in do_ls_recovery()
286 			log_rinfo(ls, "%s %llu error %d", __func__,  in do_ls_recovery()
290 			ls->ls_recovery_result = error;  in do_ls_recovery()
291 			complete(&ls->ls_recovery_done);  in do_ls_recovery()
302 	struct dlm_ls *ls;  in dlm_recoverd()  local
304 	ls = dlm_find_lockspace_local(arg);  in dlm_recoverd()
305 	if (!ls) {  in dlm_recoverd()
310 	down_write(&ls->ls_in_recovery);  in dlm_recoverd()
311 	set_bit(LSFL_RECOVER_LOCK, &ls->ls_flags);  in dlm_recoverd()
312 	wake_up(&ls->ls_recover_lock_wait);  in dlm_recoverd()
325 		if (!test_bit(LSFL_RECOVER_WORK, &ls->ls_flags) &&  in dlm_recoverd()
326 		    !test_bit(LSFL_RECOVER_DOWN, &ls->ls_flags)) {  in dlm_recoverd()
333 		if (test_and_clear_bit(LSFL_RECOVER_DOWN, &ls->ls_flags)) {  in dlm_recoverd()
334 			down_write(&ls->ls_in_recovery);  in dlm_recoverd()
335 			set_bit(LSFL_RECOVER_LOCK, &ls->ls_flags);  in dlm_recoverd()
336 			wake_up(&ls->ls_recover_lock_wait);  in dlm_recoverd()
339 		if (test_and_clear_bit(LSFL_RECOVER_WORK, &ls->ls_flags))  in dlm_recoverd()
340 			do_ls_recovery(ls);  in dlm_recoverd()
343 	if (test_bit(LSFL_RECOVER_LOCK, &ls->ls_flags))  in dlm_recoverd()
344 		up_write(&ls->ls_in_recovery);  in dlm_recoverd()
346 	dlm_put_lockspace(ls);  in dlm_recoverd()
350 int dlm_recoverd_start(struct dlm_ls *ls)  in dlm_recoverd_start()  argument
355 	p = kthread_run(dlm_recoverd, ls, "dlm_recoverd");  in dlm_recoverd_start()
359                 ls->ls_recoverd_task = p;  in dlm_recoverd_start()
363 void dlm_recoverd_stop(struct dlm_ls *ls)  in dlm_recoverd_stop()  argument
365 	kthread_stop(ls->ls_recoverd_task);  in dlm_recoverd_stop()
368 void dlm_recoverd_suspend(struct dlm_ls *ls)  in dlm_recoverd_suspend()  argument
370 	wake_up(&ls->ls_wait_general);  in dlm_recoverd_suspend()
371 	mutex_lock(&ls->ls_recoverd_active);  in dlm_recoverd_suspend()
374 void dlm_recoverd_resume(struct dlm_ls *ls)  in dlm_recoverd_resume()  argument
376 	mutex_unlock(&ls->ls_recoverd_active);  in dlm_recoverd_resume()