From owner-cvs-all@FreeBSD.ORG Wed Feb 14 15:01:08 2007 Return-Path: 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 B159216A406; Wed, 14 Feb 2007 15:01:08 +0000 (UTC) (envelope-from wes@opensail.org) Received: from softweyr.homeunix.net (cpe-24-161-160-202.san.res.rr.com [24.161.160.202]) by mx1.freebsd.org (Postfix) with ESMTP id 7FFB113C478; Wed, 14 Feb 2007 15:01:08 +0000 (UTC) (envelope-from wes@opensail.org) Received: from [204.68.178.36] (antigua.softweyr.com [204.68.178.36]) (authenticated bits=0) by softweyr.homeunix.net (8.13.8/8.13.8) with ESMTP id l1EElJa4061282; Wed, 14 Feb 2007 06:47:19 -0800 (PST) (envelope-from wes@opensail.org) In-Reply-To: <20070213152252.0E7CB4507B@ptavv.es.net> References: <20070213152252.0E7CB4507B@ptavv.es.net> Mime-Version: 1.0 (Apple Message framework v752.3) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <9BB94061-D398-48C3-9510-8053BFF1726A@opensail.org> Content-Transfer-Encoding: 7bit From: Wes Peters Date: Wed, 14 Feb 2007 06:47:17 -0800 To: Kevin Oberman X-Mailer: Apple Mail (2.752.3) Cc: Craig Rodrigues , cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/fs/unionfs union.h union_subr.c union_vfsops.c union_vnops.c src/sbin/mount_unionfs Makefile mount_unionfs.8 mount_unionfs.c X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Feb 2007 15:01:08 -0000 On Feb 13, 2007, at 7:22 AM, Kevin Oberman wrote: >> From: Craig Rodrigues >> Date: Tue, 13 Feb 2007 05:56:43 +0000 (UTC) >> Sender: owner-cvs-all@freebsd.org >> >> rodrigc 2007-02-13 05:56:43 UTC >> >> FreeBSD src repository >> >> Modified files: (Branch: RELENG_6) >> sys/fs/unionfs union.h union_subr.c union_vfsops.c >> union_vnops.c >> sbin/mount_unionfs Makefile mount_unionfs.8 mount_unionfs.c >> Log: >> MFC: New unionfs implementation from Daichi GOTO and Masanori >> OZAWA, >> which fixes many locking and crashing problems in the previous >> implementation. kib@ helped a lot by eliminating a source >> of deadlocks encountered with unionfs with these commits: >> rev. 1.50 of src/sys/fs/deadfs/dead_vnops.c >> rev. 1.97 of src/sys/kern/vfs_lookup.c >> Submitted by: daichi, Masanori OZAWA > Thanks for MFCing this work and to the authors who put all the work > into > actually making unionfs work as it should. As a regular user of > unionfs > (at this moment /etc is a unionfs on the system from which I am > sending > this), it's great that I can worry less about blowing off my foot if I > am not VERY careful what operations I do with the unionfs filesystem. Ditto. We use unionfs extensively in our build system, and take down the unions and chroot's once a build is finished running (~2 hrs) and therefore crash the build box about every 5th build. You can't imagine how much this is going to help... ;^) -- Where am I, and what am I doing in this handbasket? Wes Peters wes@softweyr.com