ext2/ialloc.c cleanup

Alexander Viro
2001-11-06T23:18:18Z

Folks, promised cleanup of ialloc.c is on
ftp.math.psu.edu:pub/viro/ialloc.c,v

And yes, it's in RCS. The thing is split into _really_ small
steps (commented in the log). Each is a trivial transformation
and it should be very easy to verify correctness of any of
them.

Please, review. IMO it's cut fine enough to make the gradual merge
possible for 2.4 - look and you'll see.