ml_iterator_cleanup

Cleanup after switch to mountlist iterator.  Keep struct mount field
mnt_list and now static mountlist for gdb and pstat.c.

diff -r 2d7dfb96a6d8 -r 4e0448f0458d sys/kern/vfs_mount.c
--- sys/kern/vfs_mount.c
+++ sys/kern/vfs_mount.c
@@ -117,9 +117,9 @@ static struct vnode *vfs_vnode_iterator_
 /* Root filesystem. */
 vnode_t *			rootvnode;
 
-/* Mounted filesystem list. */
-struct mntlist			mountlist;
-kmutex_t			mountlist_lock;
+/* Mounted filesystem list (pstat and gdb only). */
+static struct mntlist		mountlist;
+static kmutex_t			mountlist_lock;
 int vnode_offset_next_by_mount	/* XXX: ugly hack for pstat.c */
     = offsetof(vnode_impl_t, vi_mntvnodes.tqe_next);
 
diff -r 2d7dfb96a6d8 -r 4e0448f0458d sys/sys/mount.h
--- sys/sys/mount.h
+++ sys/sys/mount.h
@@ -466,10 +466,9 @@ extern time_t	metadelay;
 void	vfs_syncer_add_to_worklist(struct mount *);
 void	vfs_syncer_remove_from_worklist(struct mount *);
 
-extern	TAILQ_HEAD(mntlist, mount) mountlist;	/* mounted filesystem list */
+TAILQ_HEAD(mntlist, mount);
 extern	struct vfsops *vfssw[];			/* filesystem type table */
 extern	int nvfssw;
-extern  kmutex_t mountlist_lock;
 extern	kmutex_t vfs_list_lock;
 
 void	vfs_mount_sysinit(void);