[GFS2] Remove debugging printks

A few of my printks slipped through last time. Also fix a couple of
minor bugs.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index 317d497..5f5fc3c 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -59,7 +59,7 @@
 		if (current->flags & PF_MEMALLOC)
 			return 0;
 		if (sync)
-			gfs2_log_flush(ip->i_gl->gl_sbd, ip->i_gl);
+			gfs2_log_flush(GFS2_SB(inode), ip->i_gl);
 	}
 
 	return 0;