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diff --git a/sys/sys/vmmeter.h b/sys/sys/vmmeter.h
--- a/sys/sys/vmmeter.h
+++ b/sys/sys/vmmeter.h
@@ -120,6 +120,7 @@
counter_u64_t v_rforkpages; /* (p) pages affected by rfork() */
counter_u64_t v_kthreadpages; /* (p) ... and by kernel fork() */
counter_u64_t v_wire_count; /* (p) pages wired down */
+ counter_u64_t v_nofree_count; /* (p) permanently allocated pages */
#define VM_METER_NCOUNTERS \
(offsetof(struct vmmeter, v_page_size) / sizeof(counter_u64_t))
/*
@@ -174,6 +175,13 @@
return (VM_CNT_FETCH(v_wire_count));
}
+static inline u_int
+vm_nofree_count(void)
+{
+
+ return (VM_CNT_FETCH(v_nofree_count));
+}
+
/*
* Return TRUE if we are under our severe low-free-pages threshold
*
diff --git a/sys/vm/vm_meter.c b/sys/vm/vm_meter.c
--- a/sys/vm/vm_meter.c
+++ b/sys/vm/vm_meter.c
@@ -90,6 +90,7 @@
.v_rforkpages = EARLY_COUNTER,
.v_kthreadpages = EARLY_COUNTER,
.v_wire_count = EARLY_COUNTER,
+ .v_nofree_count = EARLY_COUNTER,
};
u_long __exclusive_cache_line vm_user_wire_count;
@@ -386,6 +387,7 @@
VM_STATS_UINT(v_free_min, "Minimum low-free-pages threshold");
VM_STATS_PROC(v_free_count, "Free pages", vm_free_count);
VM_STATS_PROC(v_wire_count, "Wired pages", vm_wire_count);
+VM_STATS_PROC(v_nofree_count, "Permanently allocated pages", vm_nofree_count);
VM_STATS_PROC(v_active_count, "Active pages", vm_active_count);
VM_STATS_UINT(v_inactive_target, "Desired inactive pages");
VM_STATS_PROC(v_inactive_count, "Inactive pages", vm_inactive_count);
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -2594,6 +2594,7 @@
}
m = &nqp->ma[nqp->offs++];
vm_domain_free_unlock(vmd);
+ VM_CNT_ADD(v_nofree_count, 1);
return (m);
}

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