108 void __jbd2_log_wait_for_space(journal_t *journal)  in __jbd2_log_wait_for_space()  argument
113 	nblocks = jbd2_space_needed(journal);  in __jbd2_log_wait_for_space()
114 	while (jbd2_log_space_left(journal) < nblocks) {  in __jbd2_log_wait_for_space()
115 		write_unlock(&journal->j_state_lock);  in __jbd2_log_wait_for_space()
116 		mutex_lock(&journal->j_checkpoint_mutex);  in __jbd2_log_wait_for_space()
129 		write_lock(&journal->j_state_lock);  in __jbd2_log_wait_for_space()
130 		if (journal->j_flags & JBD2_ABORT) {  in __jbd2_log_wait_for_space()
131 			mutex_unlock(&journal->j_checkpoint_mutex);  in __jbd2_log_wait_for_space()
134 		spin_lock(&journal->j_list_lock);  in __jbd2_log_wait_for_space()
135 		nblocks = jbd2_space_needed(journal);  in __jbd2_log_wait_for_space()
136 		space_left = jbd2_log_space_left(journal);  in __jbd2_log_wait_for_space()
138 			int chkpt = journal->j_checkpoint_transactions != NULL;  in __jbd2_log_wait_for_space()
141 			if (journal->j_committing_transaction)  in __jbd2_log_wait_for_space()
142 				tid = journal->j_committing_transaction->t_tid;  in __jbd2_log_wait_for_space()
143 			spin_unlock(&journal->j_list_lock);  in __jbd2_log_wait_for_space()
144 			write_unlock(&journal->j_state_lock);  in __jbd2_log_wait_for_space()
146 				jbd2_log_do_checkpoint(journal);  in __jbd2_log_wait_for_space()
147 			} else if (jbd2_cleanup_journal_tail(journal) == 0) {  in __jbd2_log_wait_for_space()
156 				mutex_unlock(&journal->j_checkpoint_mutex);  in __jbd2_log_wait_for_space()
157 				jbd2_log_wait_commit(journal, tid);  in __jbd2_log_wait_for_space()
158 				write_lock(&journal->j_state_lock);  in __jbd2_log_wait_for_space()
166 				       journal->j_devname);  in __jbd2_log_wait_for_space()
168 				jbd2_journal_abort(journal, 0);  in __jbd2_log_wait_for_space()
170 			write_lock(&journal->j_state_lock);  in __jbd2_log_wait_for_space()
172 			spin_unlock(&journal->j_list_lock);  in __jbd2_log_wait_for_space()
174 		mutex_unlock(&journal->j_checkpoint_mutex);  in __jbd2_log_wait_for_space()
179 __flush_batch(journal_t *journal, int *batch_count)  in __flush_batch()  argument
186 		write_dirty_buffer(journal->j_chkpt_bhs[i], REQ_SYNC);  in __flush_batch()
190 		struct buffer_head *bh = journal->j_chkpt_bhs[i];  in __flush_batch()
205 int jbd2_log_do_checkpoint(journal_t *journal)  in jbd2_log_do_checkpoint()  argument
220 	result = jbd2_cleanup_journal_tail(journal);  in jbd2_log_do_checkpoint()
221 	trace_jbd2_checkpoint(journal, result);  in jbd2_log_do_checkpoint()
231 	spin_lock(&journal->j_list_lock);  in jbd2_log_do_checkpoint()
232 	if (!journal->j_checkpoint_transactions)  in jbd2_log_do_checkpoint()
234 	transaction = journal->j_checkpoint_transactions;  in jbd2_log_do_checkpoint()
244 	if (journal->j_checkpoint_transactions != transaction ||  in jbd2_log_do_checkpoint()
254 			spin_unlock(&journal->j_list_lock);  in jbd2_log_do_checkpoint()
267 			spin_unlock(&journal->j_list_lock);  in jbd2_log_do_checkpoint()
268 			if (unlikely(journal->j_flags & JBD2_UNMOUNT))  in jbd2_log_do_checkpoint()
277 		journal->j_devname, (unsigned long long) bh->b_blocknr);  in jbd2_log_do_checkpoint()
279 			jbd2_log_start_commit(journal, tid);  in jbd2_log_do_checkpoint()
280 			jbd2_log_wait_commit(journal, tid);  in jbd2_log_do_checkpoint()
303 		journal->j_chkpt_bhs[batch_count++] = bh;  in jbd2_log_do_checkpoint()
308 		    spin_needbreak(&journal->j_list_lock))  in jbd2_log_do_checkpoint()
314 			spin_unlock(&journal->j_list_lock);  in jbd2_log_do_checkpoint()
317 				__flush_batch(journal, &batch_count);  in jbd2_log_do_checkpoint()
318 			spin_lock(&journal->j_list_lock);  in jbd2_log_do_checkpoint()
328 	if (journal->j_checkpoint_transactions != transaction ||  in jbd2_log_do_checkpoint()
336 			spin_unlock(&journal->j_list_lock);  in jbd2_log_do_checkpoint()
342 			spin_lock(&journal->j_list_lock);  in jbd2_log_do_checkpoint()
357 	spin_unlock(&journal->j_list_lock);  in jbd2_log_do_checkpoint()
359 		jbd2_journal_abort(journal, result);  in jbd2_log_do_checkpoint()
361 		result = jbd2_cleanup_journal_tail(journal);  in jbd2_log_do_checkpoint()
384 int jbd2_cleanup_journal_tail(journal_t *journal)  in jbd2_cleanup_journal_tail()  argument
389 	if (is_journal_aborted(journal))  in jbd2_cleanup_journal_tail()
392 	if (!jbd2_journal_get_log_tail(journal, &first_tid, &blocknr))  in jbd2_cleanup_journal_tail()
404 	if (journal->j_flags & JBD2_BARRIER)  in jbd2_cleanup_journal_tail()
405 		blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS, NULL);  in jbd2_cleanup_journal_tail()
407 	return __jbd2_update_log_tail(journal, first_tid, blocknr);  in jbd2_cleanup_journal_tail()
464 void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy)  in __jbd2_journal_clean_checkpoint_list()  argument
469 	transaction = journal->j_checkpoint_transactions;  in __jbd2_journal_clean_checkpoint_list()
512 void jbd2_journal_destroy_checkpoint(journal_t *journal)  in jbd2_journal_destroy_checkpoint()  argument
519 		spin_lock(&journal->j_list_lock);  in jbd2_journal_destroy_checkpoint()
520 		if (!journal->j_checkpoint_transactions) {  in jbd2_journal_destroy_checkpoint()
521 			spin_unlock(&journal->j_list_lock);  in jbd2_journal_destroy_checkpoint()
524 		__jbd2_journal_clean_checkpoint_list(journal, true);  in jbd2_journal_destroy_checkpoint()
525 		spin_unlock(&journal->j_list_lock);  in jbd2_journal_destroy_checkpoint()
552 	journal_t *journal;  in __jbd2_journal_remove_checkpoint()  local
561 	journal = transaction->t_journal;  in __jbd2_journal_remove_checkpoint()
590 	trace_jbd2_checkpoint_stats(journal->j_fs_dev->bd_dev,  in __jbd2_journal_remove_checkpoint()
593 	__jbd2_journal_drop_transaction(journal, transaction);  in __jbd2_journal_remove_checkpoint()
640 void __jbd2_journal_drop_transaction(journal_t *journal, transaction_t *transaction)  in __jbd2_journal_drop_transaction()  argument
642 	assert_spin_locked(&journal->j_list_lock);  in __jbd2_journal_drop_transaction()
646 		if (journal->j_checkpoint_transactions == transaction)  in __jbd2_journal_drop_transaction()
647 			journal->j_checkpoint_transactions =  in __jbd2_journal_drop_transaction()
649 		if (journal->j_checkpoint_transactions == transaction)  in __jbd2_journal_drop_transaction()
650 			journal->j_checkpoint_transactions = NULL;  in __jbd2_journal_drop_transaction()
660 	J_ASSERT(journal->j_committing_transaction != transaction);  in __jbd2_journal_drop_transaction()
661 	J_ASSERT(journal->j_running_transaction != transaction);  in __jbd2_journal_drop_transaction()
663 	trace_jbd2_drop_transaction(journal, transaction);  in __jbd2_journal_drop_transaction()