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

[Greg KH]

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------


From: Christoph Hellwig <hch at infradead.org>

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 at gmail.com>
Signed-off-by: Christoph Hellwig <hch at lst.de>
Signed-off-by: Alex Elder <aelder at sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>

---
 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(
 		be64_to_cpu(dp->d_blk_hardlimit);
 	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;
 	}