TAKE - add linvfs_open to directory inode operations.

[Jim Mostek <mostek@xxxxxxx>]

Modid:  2.3.99pre2-xfs:slinx:56852a
Date:  Tue Apr  4 17:00:14 PDT 2000
Workarea:  clink.americas.sgi.com:/data/clink/io/mostek/slinx-xfs

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.3.99pre2-xfs

linux/fs/xfs/linux/xfs_file.c - 1.24
http://oss.sgi.com/cgi-bin/cvsweb.cgi/linux-2.4-xfs/linux/fs/xfs/linux/xfs_file.c.diff?r1=text&tr1=1.24&r2=text&tr2=1.23&f=h
        - Add the open file operation for directories. This gets
          the read going early for readdir/getdents for directories
          that are big enough to have components in a separate block.