jbd2_journal_invalidatepage 3379 fs/ext4/inode.c 	return jbd2_journal_invalidatepage(journal, page, offset, length);
jbd2_journal_invalidatepage   89 fs/jbd2/journal.c EXPORT_SYMBOL(jbd2_journal_invalidatepage);
jbd2_journal_invalidatepage 1376 include/linux/jbd2.h extern int	 jbd2_journal_invalidatepage(journal_t *,