checking whether partition mounted as ext3

[Faheem Mitha <faheem@email.unc.edu>]

Dear People,

Just wondering if anyone knows of a easy and definitive way to
determine whether a specific mounted partition is ext2 or ext3, and if
ext3, whether is mounted as "ordered data" or "journal". Currently, I
look at the boot messages, but they are not always clear.

Thanks in advance.

                                                           Faheem.