From owner-cvs-all@FreeBSD.ORG  Mon Jan 24 10:18:31 2005
Return-Path: <owner-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 D6A0F16A4CE; Mon, 24 Jan 2005 10:18:31 +0000 (GMT)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id C2B9543D49; Mon, 24 Jan 2005 10:18:31 +0000 (GMT)
	(envelope-from jeff@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 j0OAIVT7030361;
	Mon, 24 Jan 2005 10:18:31 GMT
	(envelope-from jeff@repoman.freebsd.org)
Received: (from jeff@localhost)
	by repoman.freebsd.org (8.13.1/8.13.1/Submit) id j0OAIVaY030360;
	Mon, 24 Jan 2005 10:18:31 GMT
	(envelope-from jeff)
Message-Id: <200501241018.j0OAIVaY030360@repoman.freebsd.org>
From: Jeff Roberson <jeff@FreeBSD.org>
Date: Mon, 24 Jan 2005 10:18:31 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
	cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/ufs/ffs ffs_softdep.c
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.1
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: Mon, 24 Jan 2005 10:18:32 -0000

jeff        2005-01-24 10:18:31 UTC

  FreeBSD src repository

  Modified files:
    sys/ufs/ffs          ffs_softdep.c 
  Log:
   - Convert the global LK lock to a mutex.
   - Expand the scope of lk to cover not only interrupt races, but also
     top-half races, which includes many new uses over global top-half
     only data.
   - Get rid of interlocked_sleep() and use msleep or BUF_LOCK where
     appropriate.
   - Use the lk mutex in place of the various hand rolled semaphores.
   - Stop dropping the lk lock before we panic.
   - Fix getdirtybuf() callers so that they reacquire access to whatever
     softdep datastructure they were inxpecting in the failure/retry
     case.  Previously, sleeps in getdirtybuf() could leave us with
     pointers to bad memory.
   - Update handling of ffs to be compatible with ffs locking changes.
  
  Sponsored By:   Isilon Systems, Inc.
  
  Revision  Changes    Path
  1.166     +455 -739  src/sys/ufs/ffs/ffs_softdep.c