From 63f6cefcd53de45d4fa3d4e6495d09b46478335d Mon Sep 17 00:00:00 2001
From: Alan Cox <alc@FreeBSD.org>
Date: Sun, 2 Nov 2003 22:52:42 +0000
Subject: [PATCH]  - Increase the scope of two vm object locks in
 vm_object_split().

---
 sys/vm/vm_object.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c
index be681111f08..abf4cf91413 100644
--- a/sys/vm/vm_object.c
+++ b/sys/vm/vm_object.c
@@ -1204,6 +1204,8 @@ vm_object_split(vm_map_entry_t entry)
 	if (new_object == NULL)
 		return;
 
+	VM_OBJECT_LOCK(new_object);
+	VM_OBJECT_LOCK(orig_object);
 	source = orig_object->backing_object;
 	if (source != NULL) {
 		VM_OBJECT_LOCK(source);
@@ -1218,8 +1220,6 @@ vm_object_split(vm_map_entry_t entry)
 			orig_object->backing_object_offset + offset;
 		new_object->backing_object = source;
 	}
-	VM_OBJECT_LOCK(new_object);
-	VM_OBJECT_LOCK(orig_object);
 	for (idx = 0; idx < size; idx++) {
 	retry:
 		m = vm_page_lookup(orig_object, offidxstart + idx);