TAKE 942609 - only mark buffers done when all pages are uptodate

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

in addition replace PBF_NONE with an inverted PBF_DONE, so it's like
all the other flags.


Date:  Thu Sep 15 04:31:27 PDT 2005
Workarea:  naboo.americas.sgi.com:/go/space/hch/xfs-2.6.x
Inspected by:  nathans, kenmcd

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/linux/2.6.x-xfs


Modid:  xfs-linux:xfs-kern:199136a
fs/xfs/linux-2.6/xfs_buf.h - 1.109 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.6/xfs_buf.h.diff?r1=text&tr1=1.109&r2=text&tr2=1.108&f=h
fs/xfs/linux-2.6/xfs_buf.c - 1.208 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.6/xfs_buf.c.diff?r1=text&tr1=1.208&r2=text&tr2=1.207&f=h