From c03366a55d4ace981b016ae999ae67675c486cdd Mon Sep 17 00:00:00 2001
From: green <green@FreeBSD.org>
Date: Wed, 4 Aug 1999 18:53:50 +0000
Subject: Fix fd race conditions (during shared fd table usage.) Badfileops is
 now used in f_ops in place of NULL, and modifications to the files are more
 carefully ordered. f_ops should also be set to &badfileops upon "close" of a
 file.

This does not fix other problems mentioned in this PR than the first
one.

PR:		11629
Reviewed by:	peter
---
 sys/kern/vfs_vnops.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'sys/kern/vfs_vnops.c')

diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c
index 04c5ef5..c6663de 100644
--- a/sys/kern/vfs_vnops.c
+++ b/sys/kern/vfs_vnops.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)vfs_vnops.c	8.2 (Berkeley) 1/21/94
- * $Id: vfs_vnops.c,v 1.70 1999/07/08 06:05:56 mckusick Exp $
+ * $Id: vfs_vnops.c,v 1.71 1999/07/26 06:25:18 alc Exp $
  */
 
 #include <sys/param.h>
@@ -48,6 +48,7 @@
 #include <sys/mount.h>
 #include <sys/namei.h>
 #include <sys/vnode.h>
+#include <sys/buf.h>
 #include <sys/filio.h>
 #include <sys/ttycom.h>
 
@@ -563,6 +564,7 @@ vn_closefile(fp, p)
 	struct proc *p;
 {
 
+	fp->f_ops = &badfileops;
 	return (vn_close(((struct vnode *)fp->f_data), fp->f_flag,
 		fp->f_cred, p));
 }
-- 
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