From 72353893d4090b0ef155d60f138a2ffffef56781 Mon Sep 17 00:00:00 2001
From: Alan Cox <alc@FreeBSD.org>
Date: Sun, 2 Jun 2002 06:31:41 +0000
Subject: [PATCH]  o Condition vm_object_pmap_copy_1()'s compilation on the
 kernel    option ENABLE_VFS_IOOPT.  Unless this option is in effect,   
 vm_object_pmap_copy_1() is not used.

---
 sys/vm/vm_object.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c
index d4fe3f3458d4..2760eba72350 100644
--- a/sys/vm/vm_object.c
+++ b/sys/vm/vm_object.c
@@ -920,6 +920,7 @@ vm_object_page_collect_flush(vm_object_t object, vm_page_t p, int curgeneration,
 	return(maxf + 1);
 }
 
+#ifdef ENABLE_VFS_IOOPT
 /*
  * Same as vm_object_pmap_copy, except range checking really
  * works, and is meant for small sections of an object.
@@ -949,6 +950,7 @@ vm_object_pmap_copy_1(vm_object_t object, vm_pindex_t start, vm_pindex_t end)
 		vm_page_protect(p, VM_PROT_READ);
 	}
 }
+#endif
 
 /*
  *	vm_object_pmap_remove: