From owner-cvs-all@FreeBSD.ORG  Tue Feb  7 16:04:04 2006
Return-Path: <owner-cvs-all@FreeBSD.ORG>
X-Original-To: cvs-all@FreeBSD.org
Delivered-To: cvs-all@FreeBSD.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id A013216A420;
	Tue,  7 Feb 2006 16:04:04 +0000 (GMT) (envelope-from jhb@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 74A6843D45;
	Tue,  7 Feb 2006 16:04:04 +0000 (GMT) (envelope-from jhb@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.1/8.13.1) with ESMTP id k17G44gl084803;
	Tue, 7 Feb 2006 16:04:04 GMT (envelope-from jhb@repoman.freebsd.org)
Received: (from jhb@localhost)
	by repoman.freebsd.org (8.13.1/8.13.1/Submit) id k17G445d084802;
	Tue, 7 Feb 2006 16:04:04 GMT (envelope-from jhb)
Message-Id: <200602071604.k17G445d084802@repoman.freebsd.org>
From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 7 Feb 2006 16:04:04 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Cc: 
Subject: cvs commit: src/sys/kern kern_acct.c
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: CVS commit messages for the entire tree <cvs-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-all>
List-Post: <mailto:cvs-all@freebsd.org>
List-Help: <mailto:cvs-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 07 Feb 2006 16:04:04 -0000

jhb         2006-02-07 16:04:04 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             kern_acct.c 
  Log:
  - Add a kthread to periodically call acctwatch() when accounting is active
    instead of calling acctwatch() from softclock.  The acctwatch() function
    needs to hold an sx lock and also makes a VFS call, and neither of these
    are good things (or safe) to do from a callout.  The kthread only exists
    and is running when accounting is turned on; it is started and stopped
    as needed.  I didn't run acctwatch() via the thread taskqueue at Robert's
    request as he was worried that if the accounting file was over NFS the
    VFS_STAT() calls might stall other work on the taskqueue.
  - Add an acct_disable() function to take care of closing the accounting
    vnode and cleaning up so we don't duplicate the same code in two
    different places.
  
  MFC after:      3 days
  
  Revision  Changes    Path
  1.79      +128 -28   src/sys/kern/kern_acct.c