reiserfs: constify function pointer tables

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Acked-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/reiserfs/procfs.c

@@ -444,7 +444,7 @@ static int r_show(struct seq_file *m, void *v)
 	return show(m, v);
 }
 
-static struct seq_operations r_ops = {
+static const struct seq_operations r_ops = {
 	.start = r_start,
 	.next = r_next,
 	.stop = r_stop,