From 12352fdcaae503cd67b1b4fb027acd584aba228e Mon Sep 17 00:00:00 2001
From: Alan Cox <alc@FreeBSD.org>
Date: Fri, 2 May 2003 19:33:21 +0000
Subject: [PATCH] Lock access to the vm_object's flags in
 vop_stdcreatevobject().

---
 sys/kern/vfs_default.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sys/kern/vfs_default.c b/sys/kern/vfs_default.c
index cef1a0f8460..5ecb4aa2857 100644
--- a/sys/kern/vfs_default.c
+++ b/sys/kern/vfs_default.c
@@ -610,12 +610,15 @@ retry:
 		VM_OBJECT_UNLOCK(object);
 		vrele(vp);
 	} else {
+		VM_OBJECT_LOCK(object);
 		if (object->flags & OBJ_DEAD) {
 			VOP_UNLOCK(vp, 0, td);
-			tsleep(object, PVM, "vodead", 0);
+			msleep(object, VM_OBJECT_MTX(object), PDROP | PVM,
+			    "vodead", 0);
 			vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
 			goto retry;
 		}
+		VM_OBJECT_UNLOCK(object);
 	}
 
 	KASSERT(vp->v_object != NULL, ("vfs_object_create: NULL object"));