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authorTheo de Raadt <deraadt@cvs.openbsd.org>2007-12-15 03:42:58 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>2007-12-15 03:42:58 +0000
commitd196417615cee2b0bef878d8bece937836f17b1f (patch)
tree2130f8edd515794a485bb5c3c9f5b54a3ca7f11a /sys
parent30fb6d4ee3269e33a51b16f67d27c473cd3a5e3a (diff)
export kernel uvm_km_pages_free as vm.kmpagesfree; ok tedu, tested jsg
Diffstat (limited to 'sys')
-rw-r--r--sys/uvm/uvm_km.c5
-rw-r--r--sys/uvm/uvm_meter.c6
-rw-r--r--sys/uvm/uvm_param.h6
3 files changed, 12 insertions, 5 deletions
diff --git a/sys/uvm/uvm_km.c b/sys/uvm/uvm_km.c
index 9f01d2ac560..002455a97df 100644
--- a/sys/uvm/uvm_km.c
+++ b/sys/uvm/uvm_km.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: uvm_km.c,v 1.65 2007/12/11 15:05:45 tedu Exp $ */
+/* $OpenBSD: uvm_km.c,v 1.66 2007/12/15 03:42:57 deraadt Exp $ */
/* $NetBSD: uvm_km.c,v 1.42 2001/01/14 02:10:01 thorpej Exp $ */
/*
@@ -744,6 +744,8 @@ uvm_km_free_poolpage1(struct vm_map *map, vaddr_t addr)
#endif /* __HAVE_PMAP_DIRECT */
}
+int uvm_km_pages_free; /* number of pages currently on free list */
+
#if defined(__HAVE_PMAP_DIRECT)
/*
* uvm_km_page allocator, __HAVE_PMAP_DIRECT arch
@@ -785,7 +787,6 @@ uvm_km_putpage(void *v)
struct mutex uvm_km_mtx;
int uvm_km_pages_lowat; /* allocate more when reserve drops below this */
-int uvm_km_pages_free; /* number of pages currently on free list */
struct km_page {
struct km_page *next;
} *uvm_km_pages_head;
diff --git a/sys/uvm/uvm_meter.c b/sys/uvm/uvm_meter.c
index 007921d85a2..80291539872 100644
--- a/sys/uvm/uvm_meter.c
+++ b/sys/uvm/uvm_meter.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: uvm_meter.c,v 1.23 2007/10/10 15:53:53 art Exp $ */
+/* $OpenBSD: uvm_meter.c,v 1.24 2007/12/15 03:42:57 deraadt Exp $ */
/* $NetBSD: uvm_meter.c,v 1.21 2001/07/14 06:36:03 matt Exp $ */
/*
@@ -137,6 +137,7 @@ uvm_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
struct vmtotal vmtotals;
int rv, t;
struct _ps_strings _ps = { PS_STRINGS };
+ extern int uvm_km_pages_free;
switch (name[0]) {
case VM_SWAPENCRYPT:
@@ -218,6 +219,9 @@ uvm_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
case VM_USPACE:
return (sysctl_rdint(oldp, oldlenp, newp, USPACE));
+ case VM_KMPAGESFREE:
+ return (sysctl_rdint(oldp, oldlenp, newp, uvm_km_pages_free));
+
default:
return (EOPNOTSUPP);
}
diff --git a/sys/uvm/uvm_param.h b/sys/uvm/uvm_param.h
index 788539aea56..91e41bf2013 100644
--- a/sys/uvm/uvm_param.h
+++ b/sys/uvm/uvm_param.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: uvm_param.h,v 1.12 2007/03/26 08:43:34 art Exp $ */
+/* $OpenBSD: uvm_param.h,v 1.13 2007/12/15 03:42:57 deraadt Exp $ */
/* $NetBSD: uvm_param.h,v 1.5 2001/03/09 01:02:12 chs Exp $ */
/*
@@ -112,7 +112,8 @@ typedef int boolean_t;
#define VM_VNODEMIN 9
#define VM_MAXSLP 10
#define VM_USPACE 11
-#define VM_MAXID 12 /* number of valid vm ids */
+#define VM_KMPAGESFREE 12
+#define VM_MAXID 13 /* number of valid vm ids */
#define CTL_VM_NAMES { \
{ 0, 0 }, \
@@ -127,6 +128,7 @@ typedef int boolean_t;
{ "vnodemin", CTLTYPE_INT }, \
{ "maxslp", CTLTYPE_INT }, \
{ "uspace", CTLTYPE_INT }, \
+ { "kmpagesfree", CTLTYPE_INT }, \
}
struct _ps_strings {