Make use of XFS_SB_LOG_RES() at xfs_fs_log_dummy().
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
CC: Dave Chinner <david@fromorbit.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
        int             error;
 
        tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP);
-       error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
-                                       XFS_DEFAULT_LOG_COUNT);
+       error = xfs_trans_reserve(tp, 0, XFS_SB_LOG_RES(mp), 0, 0,
+                                 XFS_DEFAULT_LOG_COUNT);
        if (error) {
                xfs_trans_cancel(tp, 0);
                return error;