fs/afs/: possible cleanups

This patch contains the following possible cleanups:
- make the following needlessly global functions static:
  - rxrpc.c: afs_send_pages()
  - vlocation.c: afs_vlocation_queue_for_updates()
  - write.c: afs_writepages_region()
- make the following needlessly global variables static:
  - mntpt.c: afs_mntpt_expiry_timeout
  - proc.c: afs_vlocation_states[]
  - server.c: afs_server_timeout
  - vlocation.c: afs_vlocation_timeout
  - vlocation.c: afs_vlocation_update_timeout
- #if 0 the following unused function:
  - cell.c: afs_get_cell_maybe()
- #if 0 the following unused variables:
  - callback.c: afs_vnode_update_timeout
  - cmservice.c: struct afs_cm_workqueue

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/afs/cmservice.c b/fs/afs/cmservice.c
index d5b2ad6..47b71c8 100644
--- a/fs/afs/cmservice.c
+++ b/fs/afs/cmservice.c
@@ -16,7 +16,9 @@
 #include "internal.h"
 #include "afs_cm.h"
 
+#if 0
 struct workqueue_struct *afs_cm_workqueue;
+#endif  /*  0  */
 
 static int afs_deliver_cb_init_call_back_state(struct afs_call *,
 					       struct sk_buff *, bool);