[GFS2] split and annotate gfs2_log_head

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/lops.h b/fs/gfs2/lops.h
index 5839c05..965bc65 100644
--- a/fs/gfs2/lops.h
+++ b/fs/gfs2/lops.h
@@ -60,7 +60,7 @@
 }
 
 static inline void lops_before_scan(struct gfs2_jdesc *jd,
-				    struct gfs2_log_header *head,
+				    struct gfs2_log_header_host *head,
 				    unsigned int pass)
 {
 	int x;