[XFS] Show additional mount options in /proc/mounts, fix up some debug

code.

SGI-PV: 941645
SGI-Modid: xfs-linux:xfs-kern:23926a
Signed-off-by: Nathan Scott <nathans@sgi.com>

fs/xfs/xfs_vfsops.c

@@ -1883,6 +1883,7 @@ xfs_showargs(
 		{ XFS_MOUNT_OSYNCISOSYNC,	"," MNTOPT_OSYNCISOSYNC },
 		{ XFS_MOUNT_BARRIER,		"," MNTOPT_BARRIER },
 		{ XFS_MOUNT_IDELETE,		"," MNTOPT_NOIKEEP },
+		{ XFS_MOUNT_COMPAT_ATTR,	"," MNTOPT_NOATTR2 },
 		{ 0, NULL }
 	};
 	struct proc_xfs_info	*xfs_infop;
@@ -1923,6 +1924,9 @@ xfs_showargs(
 	if (!(mp->m_flags & XFS_MOUNT_32BITINOOPT))
 		seq_printf(m, "," MNTOPT_64BITINODE);
 
+	if (!(mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE))
+		seq_printf(m, "," MNTOPT_LARGEIO);
+
 	if (vfsp->vfs_flag & VFS_GRPID)
 		seq_printf(m, "," MNTOPT_GRPID);