From adf02aa8e3c2d6def05e4fa07386823a658e087f Mon Sep 17 00:00:00 2001
From: alc <alc@FreeBSD.org>
Date: Thu, 28 Nov 2002 08:01:39 +0000
Subject: [PATCH] Lock page field accesses in mincore().

Approved by:	re (blanket)
---
 sys/vm/vm_mmap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/vm/vm_mmap.c b/sys/vm/vm_mmap.c
index b9b26bf8ba55..1f9f428b7191 100644
--- a/sys/vm/vm_mmap.c
+++ b/sys/vm/vm_mmap.c
@@ -883,6 +883,7 @@ mincore(td, uap)
 				pindex = OFF_TO_IDX(offset);
 				m = vm_page_lookup(current->object.vm_object,
 					pindex);
+				vm_page_lock_queues();
 				/*
 				 * if the page is resident, then gather information about
 				 * it.
@@ -898,6 +899,7 @@ mincore(td, uap)
 						mincoreinfo |= MINCORE_REFERENCED_OTHER;
 					}
 				}
+				vm_page_unlock_queues();
 			}
 
 			/*