[GFS2] More style fixes

As per Jan Engelhardt's follow up emails, here are a few small
fixes which were missed earlier.

Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index 3558957..9eedfd1 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -30,7 +30,10 @@
 void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd);
 
 struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
-void gfs2_alloc_put(struct gfs2_inode *ip);
+static inline void gfs2_alloc_put(struct gfs2_inode *ip)
+{
+	return; /* Se we can see where ip->i_alloc is used */
+}
 
 int gfs2_inplace_reserve_i(struct gfs2_inode *ip,
 			 char *file, unsigned int line);