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[023/197] xfs: quota limit statvfs available blocks

To: linux-kernel@xxxxxxxxxxxxxxx, stable@xxxxxxxxxx
Subject: [023/197] xfs: quota limit statvfs available blocks
From: Greg KH <gregkh@xxxxxxx>
Date: Thu, 22 Apr 2010 12:07:54 -0700
Cc: stable-review@xxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, alan@xxxxxxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, Christoph Hellwig <hch@xxxxxx>, Alex Elder <aelder@xxxxxxx>
In-reply-to: <20100422191857.GA13268@xxxxxxxxx>
User-agent: quilt/0.48-4.4
2.6.32-stable review patch.  If anyone has any objections, please let us know.


From: Christoph Hellwig <hch@xxxxxxxxxxxxx>

commit 9b00f30762fe9f914eb6e03057a616ed63a4e8ca upstream

A "df" run on an NFS client of an exported XFS file system reports
the wrong information for "available" blocks.  When a block quota is
enforced, the amount reported as free is limited by the quota, but
the amount reported available is not (and should be).

Reported-by: Guk-Bong, Kwon <gbkwon@xxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

 fs/xfs/quota/xfs_qm_bhv.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -59,7 +59,7 @@ xfs_fill_statvfs_from_dquot(
        if (limit && statp->f_blocks > limit) {
                statp->f_blocks = limit;
-               statp->f_bfree =
+               statp->f_bfree = statp->f_bavail =
                        (statp->f_blocks > be64_to_cpu(dp->d_bcount)) ?
                         (statp->f_blocks - be64_to_cpu(dp->d_bcount)) : 0;

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