TAKE 908809 - pagebuf

[Nathan Scott <nathans@xxxxxxxxxxxxxxxxxxxxxxx>]

Fix a very hard-to-hit, small-block-size only corruption from a recent
change  (for 2.6 cvs users only, no other trees were affected).

Date:  Tue Mar 23 23:30:46 PST 2004
Workarea:  snort.melbourne.sgi.com:/home/nathans/clean-xfs-linux
Inspected by:  hch@xxxxxx

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/xfs-kern/xfs-linux


Modid:  xfs-linux:xfs-kern:168987a
linux-2.6/xfs_buf.c - 1.159
linux-2.4/xfs_buf.c - 1.180