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TAKE 946267 - Fixed delayed_blks assertion failure caused by ENOSPC.

To: sgi.bugs.xfs@xxxxxxx
Subject: TAKE 946267 - Fixed delayed_blks assertion failure caused by ENOSPC.
From: yingping@xxxxxxx (Yingping Lu)
Date: Thu, 15 Dec 2005 15:33:28 -0600 (CST)
Cc: linux-xfs@xxxxxxx
Sender: linux-xfs-bounce@xxxxxxxxxxx
Fixed delayed_blks assert failure during umount. The delayed_blks was caused by 
ENOSPC but not 
Rreclaimed by xfs_release or xfs_inactive. The fix changed the condition in 
xfs_release and 
xfs_inactive to invoke xfs_inactive_free_eofblocks for this special case, 
changed 
xfs_inactive_free_eofblocks to clean the delayed blks after eof. It also 
changed xfs_write to
set correct eof when ENOSPC occurs.

Date:  Thu Dec 15 13:25:27 PST 2005
Workarea:  attica.americas.sgi.com:/data/lwork/attica3/yingping/xfs-kern
Inspected by:  nathans

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


Modid:  xfs-linux:xfs-kern:203788a
xfs_vnodeops.c - 1.662 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_vnodeops.c.diff?r1=text&tr1=1.662&r2=text&tr2=1.661&f=h
        - The changes allow xfs_release and xfs_inactive to invoke 
xfs_inactive_free_eofblocks even the size is 0 but there exist delayed_blks 
which may occur when the file system run out of space. The changes in 
xfs_inactive_free_eofblocks allow to free space for delayed blocks afer eof.

linux-2.6/xfs_lrw.c - 1.232 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.6/xfs_lrw.c.diff?r1=text&tr1=1.232&r2=text&tr2=1.231&f=h
linux-2.4/xfs_lrw.c - 1.227 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.4/xfs_lrw.c.diff?r1=text&tr1=1.227&r2=text&tr2=1.226&f=h
        - This change make the file size intact when a write request was not 
successful due to ENOSPC.



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