4.8-stable review patch.  If anyone has any objections, please let me know.

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

From: Darrick J. Wong <darrick.w...@oracle.com>

commit 58d789678546d46d7bbd809dd7dab417c0f23655 upstream.

The function xfs_calc_dquots_per_chunk takes a parameter in units
of basic blocks.  The kernel seems to get the units wrong, but
userspace got 'fixed' by commenting out the unnecessary conversion.
Fix both.

Signed-off-by: Darrick J. Wong <darrick.w...@oracle.com>
Reviewed-by: Eric Sandeen <sand...@redhat.com>
Signed-off-by: Dave Chinner <da...@fromorbit.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/xfs/libxfs/xfs_dquot_buf.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/fs/xfs/libxfs/xfs_dquot_buf.c
+++ b/fs/xfs/libxfs/xfs_dquot_buf.c
@@ -191,8 +191,7 @@ xfs_dquot_buf_verify_crc(
        if (mp->m_quotainfo)
                ndquots = mp->m_quotainfo->qi_dqperchunk;
        else
-               ndquots = xfs_calc_dquots_per_chunk(
-                                       XFS_BB_TO_FSB(mp, bp->b_length));
+               ndquots = xfs_calc_dquots_per_chunk(bp->b_length);
 
        for (i = 0; i < ndquots; i++, d++) {
                if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk),


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