From b3d7effa6926b0315367b5dacb19f93b1f5ae06d Mon Sep 17 00:00:00 2001
From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 26 Aug 2008 18:00:53 +0000
Subject: [PATCH] MFC: Add 'CACHING' section to kvm_getpcpu.3.

---
 lib/libkvm/kvm_getpcpu.3 | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/libkvm/kvm_getpcpu.3 b/lib/libkvm/kvm_getpcpu.3
index 87cd139ca69f..40f16ac7e53c 100644
--- a/lib/libkvm/kvm_getpcpu.3
+++ b/lib/libkvm/kvm_getpcpu.3
@@ -71,6 +71,14 @@ If
 is not active, then
 .Dv NULL
 is returned instead.
+.Sh CACHING
+These functions cache the nlist values for various kernel variables which are
+reused in successive calls.
+You may call either function with
+.Fa kd
+set to
+.Dv NULL
+to clear this cache.
 .Sh RETURN VALUES
 On success, the
 .Fn kvm_getmaxcpu