VM level code cleanups.

1)	Start using TSM.
	Struct procs continue to point to upages structure, after being freed.
	Struct vmspace continues to point to pte object and kva space for kstack.
	u_map is now superfluous.
2)	vm_map's don't need to be reference counted.  They always exist either
	in the kernel or in a vmspace.  The vmspaces are managed by reference
	counts.
3)	Remove the "wired" vm_map nonsense.
4)	No need to keep a cache of kernel stack kva's.
5)	Get rid of strange looking ++var, and change to var++.
6)	Change more data structures to use our "zone" allocator.  Added
	struct proc, struct vmspace and struct vnode.  This saves a significant
	amount of kva space and physical memory.  Additionally, this enables
	TSM for the zone managed memory.
7)	Keep ioopt disabled for now.
8)	Remove the now bogus "single use" map concept.
9)	Use generation counts or id's for data structures residing in TSM, where
	it allows us to avoid unneeded restart overhead during traversals, where
	blocking might occur.
10)	Account better for memory deficits, so the pageout daemon will be able
	to make enough memory available (experimental.)
11)	Fix some vnode locking problems. (From Tor, I think.)
12)	Add a check in ufs_lookup, to avoid lots of unneeded calls to bcmp.
	(experimental.)
13)	Significantly shrink, cleanup, and make slightly faster the vm_fault.c
	code.  Use generation counts, get rid of unneded collpase operations,
	and clean up the cluster code.
14)	Make vm_zone more suitable for TSM.

This commit is partially as a result of discussions and contributions from
other people, including DG, Tor Egge, PHK, and probably others that I
have forgotten to attribute (so let me know, if I forgot.)

This is not the infamous, final cleanup of the vnode stuff, but a necessary
step.  Vnode mgmt should be correct, but things might still change, and
there is still some missing stuff (like ioopt, and physical backing of
non-merged cache files, debugging of layering concepts.)

1 files changed, 2 insertions, 3 deletions

diff --git a/sys/vm/pmap.h b/sys/vm/pmap.h
index 291cb01e4ea0..f38c45b0c6b1 100644
--- a/sys/vm/pmap.h
+++ b/sys/vm/pmap.h
@@ -61,7 +61,7 @@
  * any improvements or extensions that they make and grant Carnegie the
  * rights to redistribute these changes.
  *
- * $Id: pmap.h,v 1.24 1997/08/05 23:03:24 dyson Exp $
+ * $Id: pmap.h,v 1.25 1997/12/14 02:10:30 dyson Exp $
  */
 
 /*
@@ -123,8 +123,7 @@ void		 pmap_release __P((pmap_t));
 void		 pmap_remove __P((pmap_t, vm_offset_t, vm_offset_t));
 void		 pmap_remove_pages __P((pmap_t, vm_offset_t, vm_offset_t));
 void		 pmap_zero_page __P((vm_offset_t));
-void		 pmap_prefault __P((pmap_t pmap, vm_offset_t addra,
-		    vm_map_entry_t entry, vm_object_t object));
+void		 pmap_prefault __P((pmap_t, vm_offset_t, vm_map_entry_t));
 int		 pmap_mincore __P((pmap_t pmap, vm_offset_t addr));
 void		 pmap_new_proc __P((struct proc *p));
 void		 pmap_dispose_proc __P((struct proc *p));