TAKE - speed up remount readonly

[Steve Lord <lord@xxxxxxx>]

remove dependency on flush daemons on the remount readonly path.


Date:  Fri Apr 18 05:21:13 PDT 2003
Workarea:  penguin.americas.sgi.com:/src/lord/xfs-linux.2.4

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


Modid:  2.4.x-xfs:slinx:146250a
linux/fs/xfs/xfs_vfsops.c - 1.417
        - before reclaiming inodes, flush out dirty metadata, this
          prevents the inode flush from blocking waiting for a 
          previous flush in a dirty inode buffer.