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TAKE 951193 - XFS rewrite clustering clusters clean pages

To: linux-xfs@xxxxxxxxxxx, sgi.bugs.xfs@xxxxxxxxxxxx
Subject: TAKE 951193 - XFS rewrite clustering clusters clean pages
From: dgc@xxxxxxx (David Chinner)
Date: Wed, 22 Mar 2006 10:18:21 +1100 (EST)
Sender: linux-xfs-bounce@xxxxxxxxxxx
Check that a page has dirty buffers before finding it acceptable for
rewrite clustering. This prevents writing excessive amounts of clean
data when doing random rewrites of a cached file.

Date:  Wed Mar 22 10:16:02 AEDT 2006
Workarea:  chook.melbourne.sgi.com:/build/dgc/isms/2.6.x-xfs
Inspected by:  nathans

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


Modid:  xfs-linux-melb:xfs-kern:25531a
fs/xfs/linux-2.6/xfs_aops.c - 1.122 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.6/xfs_aops.c.diff?r1=text&tr1=1.122&r2=text&tr2=1.121&f=h
        - Check that a page has dirty buffers before finding it acceptable for
          rewrite clustering.



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