From owner-cvs-src@FreeBSD.ORG  Wed Oct 29 06:40:42 2003
Return-Path: <owner-cvs-src@FreeBSD.ORG>
Delivered-To: cvs-src@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 9193116A4CE; Wed, 29 Oct 2003 06:40:42 -0800 (PST)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 2030843FD7; Wed, 29 Oct 2003 06:40:42 -0800 (PST)
	(envelope-from bde@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.12.9/8.12.9) with ESMTP id h9TEefXJ021692;
	Wed, 29 Oct 2003 06:40:41 -0800 (PST)
	(envelope-from bde@repoman.freebsd.org)
Received: (from bde@localhost)
	by repoman.freebsd.org (8.12.9/8.12.9/Submit) id h9TEef06021690;
	Wed, 29 Oct 2003 06:40:41 -0800 (PST)
	(envelope-from bde)
Message-Id: <200310291440.h9TEef06021690@repoman.freebsd.org>
From: Bruce Evans <bde@FreeBSD.org>
Date: Wed, 29 Oct 2003 06:40:41 -0800 (PST)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
	cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/kern kern_fork.c sched_4bsd.c sched_ule.c
X-BeenThere: cvs-src@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: CVS commit messages for the src tree <cvs-src.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src>
List-Post: <mailto:cvs-src@freebsd.org>
List-Help: <mailto:cvs-src-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 29 Oct 2003 14:40:42 -0000

bde         2003/10/29 06:40:41 PST

  FreeBSD src repository

  Modified files:
    sys/kern             kern_fork.c sched_4bsd.c sched_ule.c 
  Log:
  Removed sched_nest variable in sched_switch().  Context switches always
  begin with sched_lock held but not recursed, so this variable was
  always 0.
  
  Removed fixup of sched_lock.mtx_recurse after context switches in
  sched_switch().  Context switches always end with this variable in the
  same state that it began in, so there is no need to fix it up.  Only
  sched_lock.mtx_lock really needs a fixup.
  
  Replaced fixup of sched_lock.mtx_recurse in fork_exit() by an assertion
  that sched_lock is owned and not recursed after it is fixed up.  This
  assertion much match the one in mi_switch(), and if sched_lock were
  recursed then a non-null fixup of sched_lock.mtx_recurse would probably
  be needed again, unlike in sched_switch(), since fork_exit() doesn't
  return to its caller in the normal way.
  
  Revision  Changes    Path
  1.207     +1 -1      src/sys/kern/kern_fork.c
  1.26      +0 -3      src/sys/kern/sched_4bsd.c
  1.69      +0 -3      src/sys/kern/sched_ule.c