HEADS UP - HAMMER work

[Matthew Dillon]

    No, it's not going to be tunable, which means it needs to be generic
    enough to not have degenerate cases which are worse then a straight
    crc.

    The directory inode has a flags field which stores the directory hash
    algorithm, so when the change is made new directories will use the
    new hash and existing directories will keep using the old hash.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>