add a new field to vm_space and use it to track the number of anon

pages a process uses.  this is now the userland "data size" value.
ok art deraadt tdeval.  thanks testers.

8 files changed, 39 insertions, 25 deletions

diff --git a/sys/uvm/uvm_extern.h b/sys/uvm/uvm_extern.h
index 4608f0360b0..fe93ea4ad4c 100644
--- a/sys/uvm/uvm_extern.h
+++ b/sys/uvm/uvm_extern.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_extern.h,v 1.55 2005/04/21 04:39:34 mickey Exp $	*/
+/*	$OpenBSD: uvm_extern.h,v 1.56 2005/05/24 21:11:47 tedu Exp $	*/
 /*	$NetBSD: uvm_extern.h,v 1.57 2001/03/09 01:02:12 chs Exp $	*/
 
 /*
@@ -395,6 +395,7 @@ struct vmspace {
 	segsz_t vm_swrss;	/* resident set size before last swap */
 	segsz_t vm_tsize;	/* text size (pages) XXX */
 	segsz_t vm_dsize;	/* data size (pages) XXX */
+	segsz_t vm_dused;	/* data segment length (pages) XXX */
 	segsz_t vm_ssize;	/* stack size (pages) */
 	caddr_t	vm_taddr;	/* user virtual address of text XXX */
 	caddr_t	vm_daddr;	/* user virtual address of data XXX */
@@ -517,9 +518,10 @@ void			*uvm_km_getpage(boolean_t);
 void			uvm_km_putpage(void *);
 
 /* uvm_map.c */
-int			uvm_map(vm_map_t, vaddr_t *, vsize_t,
+#define	uvm_map(_m, _a, _sz, _u, _f, _al, _fl) uvm_map_p(_m, _a, _sz, _u, _f, _al, _fl, 0)
+int			uvm_map_p(vm_map_t, vaddr_t *, vsize_t,
 				struct uvm_object *, voff_t, vsize_t,
-				uvm_flag_t);
+				uvm_flag_t, struct proc *);
 int			uvm_map_pageable(vm_map_t, vaddr_t, 
 				vaddr_t, boolean_t, int);
 int			uvm_map_pageable_all(vm_map_t, int, vsize_t);
@@ -547,7 +549,7 @@ void			uvm_total(struct vmtotal *);
 /* uvm_mmap.c */
 int			uvm_mmap(vm_map_t, vaddr_t *, vsize_t,
 				vm_prot_t, vm_prot_t, int, 
-				caddr_t, voff_t, vsize_t);
+				caddr_t, voff_t, vsize_t, struct proc *);
 
 /* uvm_page.c */
 struct vm_page		*uvm_pagealloc_strat(struct uvm_object *,
diff --git a/sys/uvm/uvm_io.c b/sys/uvm/uvm_io.c
index 4bbabf480a7..25702be8d4b 100644
--- a/sys/uvm/uvm_io.c
+++ b/sys/uvm/uvm_io.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_io.c,v 1.14 2002/10/29 18:30:21 art Exp $	*/
+/*	$OpenBSD: uvm_io.c,v 1.15 2005/05/24 21:11:47 tedu Exp $	*/
 /*	$NetBSD: uvm_io.c,v 1.12 2000/06/27 17:29:23 mrg Exp $	*/
 
 /*
@@ -139,7 +139,7 @@ uvm_io(map, uio)
 
 		vm_map_lock(kernel_map);
 		uvm_unmap_remove(kernel_map, kva, kva+chunksz,
-		    &dead_entries);
+		    &dead_entries, NULL);
 		vm_map_unlock(kernel_map);
 
 		if (dead_entries != NULL)
diff --git a/sys/uvm/uvm_km.c b/sys/uvm/uvm_km.c
index e34f1b4161c..0b1ca938c8c 100644
--- a/sys/uvm/uvm_km.c
+++ b/sys/uvm/uvm_km.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_km.c,v 1.45 2004/12/30 08:28:39 niklas Exp $	*/
+/*	$OpenBSD: uvm_km.c,v 1.46 2005/05/24 21:11:47 tedu Exp $	*/
 /*	$NetBSD: uvm_km.c,v 1.42 2001/01/14 02:10:01 thorpej Exp $	*/
 
 /* 
@@ -604,7 +604,7 @@ uvm_km_free_wakeup(map, addr, size)
 
 	vm_map_lock(map);
 	uvm_unmap_remove(map, trunc_page(addr), round_page(addr+size), 
-			 &dead_entries);
+			 &dead_entries, NULL);
 	wakeup(map);
 	vm_map_unlock(map);
 
diff --git a/sys/uvm/uvm_map.c b/sys/uvm/uvm_map.c
index 94e8b0918a2..9198785226c 100644
--- a/sys/uvm/uvm_map.c
+++ b/sys/uvm/uvm_map.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_map.c,v 1.70 2004/12/30 08:28:39 niklas Exp $	*/
+/*	$OpenBSD: uvm_map.c,v 1.71 2005/05/24 21:11:47 tedu Exp $	*/
 /*	$NetBSD: uvm_map.c,v 1.86 2000/11/27 08:40:03 chs Exp $	*/
 
 /* 
@@ -695,7 +695,7 @@ uvm_map_clip_end(map, entry, end)
  */
 
 int
-uvm_map(map, startp, size, uobj, uoffset, align, flags)
+uvm_map_p(map, startp, size, uobj, uoffset, align, flags, p)
 	vm_map_t map;
 	vaddr_t *startp;	/* IN/OUT */
 	vsize_t size;
@@ -703,6 +703,7 @@ uvm_map(map, startp, size, uobj, uoffset, align, flags)
 	voff_t uoffset;
 	vsize_t align;
 	uvm_flag_t flags;
+	struct proc *p;
 {
 	vm_map_entry_t prev_entry, new_entry;
 	vm_prot_t prot = UVM_PROTECTION(flags), maxprot =
@@ -849,6 +850,8 @@ uvm_map(map, startp, size, uobj, uoffset, align, flags)
 		prev_entry->end += size;
 		uvm_rb_fixup(map, prev_entry);
 		map->size += size;
+		if (p && uobj == NULL)
+			p->p_vmspace->vm_dused += btoc(size);
 
 		uvm_tree_sanity(map, "map leave 2");
 
@@ -914,6 +917,9 @@ step3:
 	uvm_map_entry_link(map, prev_entry, new_entry);
 
 	map->size += size;
+	if (p && uobj == NULL)
+		p->p_vmspace->vm_dused += btoc(size);
+
 
 	/*
 	 *      Update the free space hint
@@ -1363,10 +1369,11 @@ uvm_map_findspace(map, hint, length, result, uobj, uoffset, align, flags)
  */
 
 void
-uvm_unmap_remove(map, start, end, entry_list)
+uvm_unmap_remove(map, start, end, entry_list, p)
 	vm_map_t map;
 	vaddr_t start,end;
 	vm_map_entry_t *entry_list;	/* OUT */
+	struct proc *p;
 {
 	vm_map_entry_t entry, first_entry, next;
 	vaddr_t len;
@@ -1430,6 +1437,8 @@ uvm_unmap_remove(map, start, end, entry_list)
 		UVM_MAP_CLIP_END(map, entry, end); 
 		next = entry->next;
 		len = entry->end - entry->start;
+		if (p && entry->object.uvm_obj == NULL)
+			p->p_vmspace->vm_dused -= btoc(len);
 
 		/*
 		 * unwire before removing addresses from the pmap; otherwise
@@ -3333,7 +3342,7 @@ uvmspace_free(vm)
 		if (vm->vm_map.nentries) {
 			uvm_unmap_remove(&vm->vm_map,
 			    vm->vm_map.min_offset, vm->vm_map.max_offset,
-			    &dead_entries);
+			    &dead_entries, NULL);
 			if (dead_entries != NULL)
 				uvm_unmap_detach(dead_entries, 0);
 		}
diff --git a/sys/uvm/uvm_map.h b/sys/uvm/uvm_map.h
index bd10caedd98..6683fc90559 100644
--- a/sys/uvm/uvm_map.h
+++ b/sys/uvm/uvm_map.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_map.h,v 1.31 2005/03/01 01:28:39 henning Exp $	*/
+/*	$OpenBSD: uvm_map.h,v 1.32 2005/05/24 21:11:47 tedu Exp $	*/
 /*	$NetBSD: uvm_map.h,v 1.24 2001/02/18 21:19:08 chs Exp $	*/
 
 /* 
@@ -354,11 +354,12 @@ int		uvm_map_reserve(vm_map_t, vsize_t, vaddr_t, vsize_t,
 			vaddr_t *);
 void		uvm_map_setup(vm_map_t, vaddr_t, vaddr_t, int);
 int		uvm_map_submap(vm_map_t, vaddr_t, vaddr_t, vm_map_t);
+#define		uvm_unmap(_m, _s, _e) uvm_unmap_p(_m, _s, _e, 0)
 MAP_INLINE
-void		uvm_unmap(vm_map_t, vaddr_t, vaddr_t);
+void		uvm_unmap_p(vm_map_t, vaddr_t, vaddr_t, struct proc *);
 void		uvm_unmap_detach(vm_map_entry_t,int);
 void		uvm_unmap_remove(vm_map_t, vaddr_t, vaddr_t,
-				      vm_map_entry_t *);
+				      vm_map_entry_t *, struct proc *);
 
 #endif /* _KERNEL */
 
diff --git a/sys/uvm/uvm_map_i.h b/sys/uvm/uvm_map_i.h
index c5d3a238c5b..8927c6dfb73 100644
--- a/sys/uvm/uvm_map_i.h
+++ b/sys/uvm/uvm_map_i.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_map_i.h,v 1.16 2002/10/29 18:30:21 art Exp $	*/
+/*	$OpenBSD: uvm_map_i.h,v 1.17 2005/05/24 21:11:47 tedu Exp $	*/
 /*	$NetBSD: uvm_map_i.h,v 1.18 2000/11/27 08:40:04 chs Exp $	*/
 
 /* 
@@ -161,9 +161,10 @@ uvm_map_setup(map, min, max, flags)
  */
 
 MAP_INLINE void
-uvm_unmap(map, start, end)
+uvm_unmap_p(map, start, end, p)
 	vm_map_t map;
 	vaddr_t start,end;
+	struct proc *p;
 {
 	vm_map_entry_t dead_entries;
 	UVMHIST_FUNC("uvm_unmap"); UVMHIST_CALLED(maphist);
@@ -175,7 +176,7 @@ uvm_unmap(map, start, end)
 	 * detach from the dead entries...
 	 */
 	vm_map_lock(map);
-	uvm_unmap_remove(map, start, end, &dead_entries);
+	uvm_unmap_remove(map, start, end, &dead_entries, p);
 	vm_map_unlock(map);
 
 	if (dead_entries != NULL)
diff --git a/sys/uvm/uvm_mmap.c b/sys/uvm/uvm_mmap.c
index 1e6fc9a5564..73f7ca37f31 100644
--- a/sys/uvm/uvm_mmap.c
+++ b/sys/uvm/uvm_mmap.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_mmap.c,v 1.55 2005/01/15 06:54:51 otto Exp $	*/
+/*	$OpenBSD: uvm_mmap.c,v 1.56 2005/05/24 21:11:47 tedu Exp $	*/
 /*	$NetBSD: uvm_mmap.c,v 1.49 2001/02/18 21:19:08 chs Exp $	*/
 
 /*
@@ -605,7 +605,7 @@ sys_mmap(p, v, retval)
 	 */
 
 	error = uvm_mmap(&p->p_vmspace->vm_map, &addr, size, prot, maxprot,
-	    flags, handle, pos, p->p_rlimit[RLIMIT_MEMLOCK].rlim_cur);
+	    flags, handle, pos, p->p_rlimit[RLIMIT_MEMLOCK].rlim_cur, p);
 
 	if (error == 0)
 		/* remember to add offset */
@@ -787,7 +787,7 @@ sys_munmap(p, v, retval)
 	/*
 	 * doit!
 	 */
-	uvm_unmap_remove(map, addr, addr + size, &dead_entries);
+	uvm_unmap_remove(map, addr, addr + size, &dead_entries, p);
 
 	vm_map_unlock(map);	/* and unlock */
 
@@ -1164,7 +1164,7 @@ sys_munlockall(p, v, retval)
  */
 
 int
-uvm_mmap(map, addr, size, prot, maxprot, flags, handle, foff, locklimit)
+uvm_mmap(map, addr, size, prot, maxprot, flags, handle, foff, locklimit, p)
 	vm_map_t map;
 	vaddr_t *addr;
 	vsize_t size;
@@ -1173,6 +1173,7 @@ uvm_mmap(map, addr, size, prot, maxprot, flags, handle, foff, locklimit)
 	caddr_t handle;		/* XXX: VNODE? */
 	voff_t foff;
 	vsize_t locklimit;
+	struct proc *p;
 {
 	struct uvm_object *uobj;
 	struct vnode *vp;
@@ -1301,7 +1302,7 @@ uvm_mmap(map, addr, size, prot, maxprot, flags, handle, foff, locklimit)
 	 * do it!
 	 */
 
-	retval = uvm_map(map, addr, size, uobj, foff, align, uvmflag);
+	retval = uvm_map_p(map, addr, size, uobj, foff, align, uvmflag, p);
 
 	if (retval == KERN_SUCCESS) {
 		/*
diff --git a/sys/uvm/uvm_pager.c b/sys/uvm/uvm_pager.c
index ae3babf1288..c415e211d64 100644
--- a/sys/uvm/uvm_pager.c
+++ b/sys/uvm/uvm_pager.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uvm_pager.c,v 1.35 2004/02/23 06:19:32 drahn Exp $	*/
+/*	$OpenBSD: uvm_pager.c,v 1.36 2005/05/24 21:11:47 tedu Exp $	*/
 /*	$NetBSD: uvm_pager.c,v 1.36 2000/11/27 18:26:41 chs Exp $	*/
 
 /*
@@ -227,7 +227,7 @@ uvm_pagermapout(kva, npages)
 	}
 
 	vm_map_lock(pager_map);
-	uvm_unmap_remove(pager_map, kva, kva + size, &entries);
+	uvm_unmap_remove(pager_map, kva, kva + size, &entries, NULL);
 	simple_lock(&pager_map_wanted_lock);
 	if (pager_map_wanted) {
 		pager_map_wanted = FALSE;