[GFS2] [-mm patch] fs/gfs2/: possible cleanups

This patch contains the following possible cleanups:
- make needlessly global code static
- #if 0 unused functions
- remove the following global function that was both unused and
  unimplemented:
  - super.c: gfs2_do_upgrade()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/lm.c b/fs/gfs2/lm.c
index 5b3c56d..06a785e 100644
--- a/fs/gfs2/lm.c
+++ b/fs/gfs2/lm.c
@@ -188,11 +188,13 @@
 		sdp->sd_lockstruct.ls_ops->lm_unhold_lvb(lock, lvb);
 }
 
+#if 0
 void gfs2_lm_sync_lvb(struct gfs2_sbd *sdp, lm_lock_t *lock, char *lvb)
 {
 	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
 		sdp->sd_lockstruct.ls_ops->lm_sync_lvb(lock, lvb);
 }
+#endif  /*  0  */
 
 int gfs2_lm_plock_get(struct gfs2_sbd *sdp, struct lm_lockname *name,
 		      struct file *file, struct file_lock *fl)