xfs: clean up printing inode32/64 in xfs_showargs

inode64 is the only value remaining in the unset array.  Special case
the inode32/64 options with an explicit seq_printf that prints either
inode32 or inode64, and remove the unset array.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_super.c

@@ -423,26 +423,19 @@ xfs_showargs(
 		{ XFS_MOUNT_FILESTREAMS,	",filestreams" },
 		{ XFS_MOUNT_GRPID,		",grpid" },
 		{ XFS_MOUNT_DISCARD,		",discard" },
-		{ XFS_MOUNT_SMALL_INUMS,	",inode32" },
 		{ XFS_MOUNT_LARGEIO,		",largeio" },
 		{ XFS_MOUNT_DAX,		",dax" },
 		{ 0, NULL }
 	};
-	static struct proc_xfs_info xfs_info_unset[] = {
-		/* the few simple ones we can get from the mount struct */
-		{ XFS_MOUNT_SMALL_INUMS,	",inode64" },
-		{ 0, NULL }
-	};
 	struct proc_xfs_info	*xfs_infop;
 
 	for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) {
 		if (mp->m_flags & xfs_infop->flag)
 			seq_puts(m, xfs_infop->str);
 	}
-	for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) {
-		if (!(mp->m_flags & xfs_infop->flag))
-			seq_puts(m, xfs_infop->str);
-	}
+
+	seq_printf(m, ",inode%d",
+		(mp->m_flags & XFS_MOUNT_SMALL_INUMS) ? 32 : 64);
 
 	if (mp->m_flags & XFS_MOUNT_ALLOCSIZE)
 		seq_printf(m, ",allocsize=%dk",