PARTIAL TAKE 900167 - inode64 option

[Nathan Scott <nathans@xxxxxxxxxxxxxxxxxxxxxxx>]

Add inode64 mount option; fix case where growfs can push 32 bit inodes
into 64 bit space accidentally - both changes originally from IRIX.

Both changes only interesting on 64 bit machines.

cheers.


Date:  Sun Sep  7 22:46:42 PDT 2003
Workarea:  bruce.melbourne.sgi.com:/home/nathans/isms/devel

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.x-xfs


Modid:  xfs-linux:slinx:157935a
linux/fs/xfs/xfs_vfsops.c - 1.431
linux/fs/xfs/xfs_mount.h - 1.179
linux/fs/xfs/xfs_mount.c - 1.335