jbd2_journal_init_inode
journal = jbd2_journal_init_inode(journal_inode);
EXPORT_SYMBOL(jbd2_journal_init_inode);
journal = jbd2_journal_init_inode(inode);
j_journal = jbd2_journal_init_inode(inode);
extern journal_t * jbd2_journal_init_inode (struct inode *);