From 32e4d4c5e60637e363d257d2cea2d3eed2c97f86 Mon Sep 17 00:00:00 2001
From: Bruce Evans <bde@FreeBSD.org>
Date: Mon, 27 Oct 1997 15:26:23 +0000
Subject: [PATCH] Use 127 instead of CHAR_MAX for the limit on the sequence
 count.  The limit doesn't have anything to do with characters.  The count
 mainly needs to fit in the VOP_READ() ioflag after being left shifted by 16.

Moved vn_lock() before vn_closefile().  vn_lock() was mismerged from
Lite2.

Removed some gratuitous braces.
---
 sys/kern/vfs_vnops.c | 35 +++++++++++++++++------------------
 1 file changed, 17 insertions(+), 18 deletions(-)

diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c
index 1117ef5ff3d3..19f35b0a7003 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 1.38 1997/09/14 02:51:16 peter Exp $
+ * $Id: vfs_vnops.c,v 1.39 1997/10/06 02:38:27 dyson Exp $
  */
 
 #include <sys/param.h>
@@ -298,8 +298,8 @@ vn_read(fp, uio, cred)
 		 * are.
 		 */
 		tmpseq += ((count + BKVASIZE - 1) / BKVASIZE);
-		if (tmpseq >= CHAR_MAX)
-			tmpseq = CHAR_MAX;
+		if (tmpseq >= 127)
+			tmpseq = 127;
 		fp->f_seqcount = tmpseq;
 		flag |= (fp->f_seqcount << 16);
 	} else {
@@ -490,19 +490,6 @@ vn_poll(fp, events, cred, p)
 	return (VOP_POLL(((struct vnode *)fp->f_data), events, cred, p));
 }
 
-/*
- * File table vnode close routine.
- */
-static int
-vn_closefile(fp, p)
-	struct file *fp;
-	struct proc *p;
-{
-
-	return (vn_close(((struct vnode *)fp->f_data), fp->f_flag,
-		fp->f_cred, p));
-}
-
 /*
  * Check that the vnode is still valid, and if so
  * acquire requested lock.
@@ -516,9 +503,8 @@ vn_lock(vp, flags, p)
 	int error;
 	
 	do {
-		if ((flags & LK_INTERLOCK) == 0) {
+		if ((flags & LK_INTERLOCK) == 0)
 			simple_lock(&vp->v_interlock);
-		}
 		if (vp->v_flag & VXLOCK) {
 			vp->v_flag |= VXWANT;
 			simple_unlock(&vp->v_interlock);
@@ -533,3 +519,16 @@ vn_lock(vp, flags, p)
 	} while (flags & LK_RETRY);
 	return (error);
 }
+
+/*
+ * File table vnode close routine.
+ */
+static int
+vn_closefile(fp, p)
+	struct file *fp;
+	struct proc *p;
+{
+
+	return (vn_close(((struct vnode *)fp->f_data), fp->f_flag,
+		fp->f_cred, p));
+}