476 	journal_t *journal = sbi->s_journal;  in ext4_maybe_update_superblock()  local
483 	    !(sb->s_flags & SB_ACTIVE) || !journal ||  in ext4_maybe_update_superblock()
484 	    journal->j_flags & JBD2_UNMOUNT)  in ext4_maybe_update_superblock()
509 static void ext4_journal_commit_callback(journal_t *journal, transaction_t *txn)  in ext4_journal_commit_callback()  argument
511 	struct super_block		*sb = journal->j_private;  in ext4_journal_commit_callback()
694 	journal_t *journal = EXT4_SB(sb)->s_journal;  in ext4_handle_error()  local
701 	if (!continue_fs && !ext4_emergency_ro(sb) && journal)  in ext4_handle_error()
702 		jbd2_journal_abort(journal, -error);  in ext4_handle_error()
715 		if (continue_fs && journal &&  in ext4_handle_error()
749 	journal_t *journal = sbi->s_journal;  in update_super_work()  local
761 	    !sb_rdonly(sbi->s_sb) && journal) {  in update_super_work()
765 		handle = jbd2_journal_start(journal, 1);  in update_super_work()
5856 static void ext4_init_journal_params(struct super_block *sb, journal_t *journal)  in ext4_init_journal_params()  argument
5860 	journal->j_commit_interval = sbi->s_commit_interval;  in ext4_init_journal_params()
5861 	journal->j_min_batch_time = sbi->s_min_batch_time;  in ext4_init_journal_params()
5862 	journal->j_max_batch_time = sbi->s_max_batch_time;  in ext4_init_journal_params()
5863 	ext4_fc_init(sb, journal);  in ext4_init_journal_params()
5865 	write_lock(&journal->j_state_lock);  in ext4_init_journal_params()
5867 		journal->j_flags |= JBD2_BARRIER;  in ext4_init_journal_params()
5869 		journal->j_flags &= ~JBD2_BARRIER;  in ext4_init_journal_params()
5874 	journal->j_flags |= JBD2_CYCLE_RECORD;  in ext4_init_journal_params()
5875 	write_unlock(&journal->j_state_lock);  in ext4_init_journal_params()
5910 static int ext4_journal_bmap(journal_t *journal, sector_t *block)  in ext4_journal_bmap()  argument
5915 	if (journal->j_inode == NULL)  in ext4_journal_bmap()
5920 	ret = ext4_map_blocks(NULL, journal->j_inode, &map, 0);  in ext4_journal_bmap()
5922 		ext4_msg(journal->j_inode->i_sb, KERN_CRIT,  in ext4_journal_bmap()
5925 		jbd2_journal_abort(journal, ret ? ret : -EFSCORRUPTED);  in ext4_journal_bmap()
5936 	journal_t *journal;  in ext4_open_inode_journal()  local
5942 	journal = jbd2_journal_init_inode(journal_inode);  in ext4_open_inode_journal()
5943 	if (IS_ERR(journal)) {  in ext4_open_inode_journal()
5946 		return ERR_CAST(journal);  in ext4_open_inode_journal()
5948 	journal->j_private = sb;  in ext4_open_inode_journal()
5949 	journal->j_bmap = ext4_journal_bmap;  in ext4_open_inode_journal()
5950 	ext4_init_journal_params(sb, journal);  in ext4_open_inode_journal()
5951 	return journal;  in ext4_open_inode_journal()
6036 	journal_t *journal;  in ext4_open_dev_journal()  local
6046 	journal = jbd2_journal_init_dev(file_bdev(bdev_file), sb->s_bdev, j_start,  in ext4_open_dev_journal()
6048 	if (IS_ERR(journal)) {  in ext4_open_dev_journal()
6050 		errno = PTR_ERR(journal);  in ext4_open_dev_journal()
6053 	if (be32_to_cpu(journal->j_superblock->s_nr_users) != 1) {  in ext4_open_dev_journal()
6056 			be32_to_cpu(journal->j_superblock->s_nr_users));  in ext4_open_dev_journal()
6060 	journal->j_private = sb;  in ext4_open_dev_journal()
6062 	ext4_init_journal_params(sb, journal);  in ext4_open_dev_journal()
6063 	return journal;  in ext4_open_dev_journal()
6066 	ext4_journal_destroy(EXT4_SB(sb), journal);  in ext4_open_dev_journal()
6076 	journal_t *journal;  in ext4_load_journal()  local
6101 		journal = ext4_open_inode_journal(sb, journal_inum);  in ext4_load_journal()
6102 		if (IS_ERR(journal))  in ext4_load_journal()
6103 			return PTR_ERR(journal);  in ext4_load_journal()
6105 		journal = ext4_open_dev_journal(sb, journal_dev);  in ext4_load_journal()
6106 		if (IS_ERR(journal))  in ext4_load_journal()
6107 			return PTR_ERR(journal);  in ext4_load_journal()
6110 	journal_dev_ro = bdev_read_only(journal->j_dev);  in ext4_load_journal()
6141 	if (!(journal->j_flags & JBD2_BARRIER))  in ext4_load_journal()
6145 		err = jbd2_journal_wipe(journal, !really_read_only);  in ext4_load_journal()
6154 		err = jbd2_journal_load(journal);  in ext4_load_journal()
6180 	EXT4_SB(sb)->s_journal = journal;  in ext4_load_journal()
6183 		ext4_journal_destroy(EXT4_SB(sb), journal);  in ext4_load_journal()
6201 	ext4_journal_destroy(EXT4_SB(sb), journal);  in ext4_load_journal()
6337 	journal_t *journal = EXT4_SB(sb)->s_journal;  in ext4_mark_recovery_complete()  local
6340 		if (journal != NULL) {  in ext4_mark_recovery_complete()
6347 	jbd2_journal_lock_updates(journal);  in ext4_mark_recovery_complete()
6348 	err = jbd2_journal_flush(journal, 0);  in ext4_mark_recovery_complete()
6364 	jbd2_journal_unlock_updates(journal);  in ext4_mark_recovery_complete()
6376 	journal_t *journal;  in ext4_clear_journal_err()  local
6385 	journal = EXT4_SB(sb)->s_journal;  in ext4_clear_journal_err()
6392 	j_errno = jbd2_journal_errno(journal);  in ext4_clear_journal_err()
6407 		jbd2_journal_clear_err(journal);  in ext4_clear_journal_err()
6408 		jbd2_journal_update_sb_errno(journal);  in ext4_clear_journal_err()
6479 	journal_t *journal = EXT4_SB(sb)->s_journal;  in ext4_freeze()  local
6481 	if (journal) {  in ext4_freeze()
6483 		jbd2_journal_lock_updates(journal);  in ext4_freeze()
6489 		error = jbd2_journal_flush(journal, 0);  in ext4_freeze()
6501 	if (journal)  in ext4_freeze()
6503 		jbd2_journal_unlock_updates(journal);  in ext4_freeze()