From owner-cvs-all@FreeBSD.ORG  Tue Jun 26 21:31:56 2007
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 [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id E4C5516A41F;
	Tue, 26 Jun 2007 21:31:56 +0000 (UTC)
	(envelope-from attilio@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org [69.147.83.41])
	by mx1.freebsd.org (Postfix) with ESMTP id D4B7E13C457;
	Tue, 26 Jun 2007 21:31:56 +0000 (UTC)
	(envelope-from attilio@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.8/8.13.8) with ESMTP id l5QLVuSd017694;
	Tue, 26 Jun 2007 21:31:56 GMT
	(envelope-from attilio@repoman.freebsd.org)
Received: (from attilio@localhost)
	by repoman.freebsd.org (8.13.8/8.13.8/Submit) id l5QLVuei017693;
	Tue, 26 Jun 2007 21:31:56 GMT (envelope-from attilio)
Message-Id: <200706262131.l5QLVuei017693@repoman.freebsd.org>
From: Attilio Rao <attilio@FreeBSD.org>
Date: Tue, 26 Jun 2007 21:31:56 +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_rwlock.c src/sys/sys _rwlock.h
 rwlock.h
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, 26 Jun 2007 21:31:57 -0000

attilio     2007-06-26 21:31:56 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             kern_rwlock.c 
    sys/sys              _rwlock.h rwlock.h 
  Log:
  Introduce a new rwlocks initialization function: rw_init_flags.
  This is very similar to sx_init_flags: it initializes the rwlock using
  special flags passed as third argument (RW_DUPOK, RW_NOPROFILE,
  RW_NOWITNESS, RW_QUIET, RW_RECURSE).
  Among these, the most important new feature is probabilly that rwlocks
  can be acquired recursively now (for both shared and exclusive paths).
  
  Because of the recursion counter, the ABI is changed.
  
  Tested by: Timothy Redaelli <drizzt@gufi.org>
  Reviewed by: jhb
  Approved by: jeff (mentor)
  Approved by: re
  
  Revision  Changes    Path
  1.27      +85 -9     src/sys/kern/kern_rwlock.c
  1.4       +1 -0      src/sys/sys/_rwlock.h
  1.13      +17 -3     src/sys/sys/rwlock.h