From owner-freebsd-arch@FreeBSD.ORG Sat Oct 8 10:16:23 2011 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BAA36106566B for ; Sat, 8 Oct 2011 10:16:23 +0000 (UTC) (envelope-from jpaetzel@freebsd.org) Received: from out3.smtp.messagingengine.com (out3.smtp.messagingengine.com [66.111.4.27]) by mx1.freebsd.org (Postfix) with ESMTP id 72BFD8FC13 for ; Sat, 8 Oct 2011 10:16:23 +0000 (UTC) Received: from compute5.internal (compute5.nyi.mail.srv.osa [10.202.2.45]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id B077A203AC for ; Sat, 8 Oct 2011 05:59:35 -0400 (EDT) Received: from frontend1.nyi.mail.srv.osa ([10.202.2.160]) by compute5.internal (MEProxy); Sat, 08 Oct 2011 05:59:35 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=message-id:date:from:mime-version:to :subject:references:in-reply-to:content-type :content-transfer-encoding; s=smtpout; bh=CmtHgOA5+pXlFpwqY7OqLn Pbez8=; b=Iwq4+wts+EaOdv9iy7v4D0xtfegs/5e/leD1OUweu5leeAgTu/T0EA Jvp/agqggkly7DeQHmm2l/V6mJmdlSvPFgasgiO27blSqWlpzyJI0lkho5bjbTbd 6DbuLM7GFsh+B6Ef6sbtdlCQ0Ouf+SeEqgTXbQFFJ9+YJOP+BMgTg= X-Sasl-enc: C5JCWKANQUhpllvYy9lAto8U0CzMoPWdliMdZp89BEEl 1318067966 Received: from roadrash.tcbug.org (unknown [206.40.55.111]) by mail.messagingengine.com (Postfix) with ESMTPSA id DCC50401A46 for ; Sat, 8 Oct 2011 05:59:22 -0400 (EDT) Message-ID: <4E901EA6.30808@freebsd.org> Date: Sat, 08 Oct 2011 11:57:58 +0200 From: Josh Paetzel Organization: FreeBSD User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:7.0.1) Gecko/20111003 Thunderbird/7.0.1 MIME-Version: 1.0 To: freebsd-arch@freebsd.org References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: Call to arms: MPSAFE file systems X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 08 Oct 2011 10:16:23 -0000 On 09/12/11 13:08, Robert Watson wrote: > > On Sat, 27 Aug 2011, Attilio Rao wrote: > >> With the aid of kib and rwatson I made a roughly outlined plan about >> what is left to do in order to have all the filesystems locked (or >> eventually dropped) before 10.0) and is summarized here: >> http://wiki.freebsd.org/NONMPSAFE_DEORBIT_VFS > > Here's a more succinct summary of the key points from the wiki: > > FreeBSD has supported Giant lock-free file systems for years, and > almost all file systems have been shipping "MPSAFE" for several > years. However, VFS retains compatibility support for non-MPSAFE file > systems. We want to remove that compatibility support, as it adds > non-trivial complexity to an already quite complex VFS, simplifying > the code and making it easier to maintain and enhance. This means > either fixing or removing any file systems that can't operate without > compatibility support. > > Attilio has posted a schedule for the removal of compatibility > crutches, which in turn means removing any un-updated file systems. > We are looking for volunteers to perform those updates. Here's the > schedule: > > 27 August 2011 Attilio posts plan on arch@ > 1 October 2011 Add VFS_GIANT_COMPATIBILITY option (enabled) > 1 March 2012 Disable VFS_GIANT_COMPATIBILITY option by default > 1 September 2012 Disconnect non-MPSAFE file systems from build > 1 March 2013 Garbage collect any un-updated file systems > > Most of our critical file systems are already done: UFS, ZFS, the NFS > client and server (both old and new), unionfs, pseudofs, tmpfs, > nullfs, devfs, cd9660, ext2fs, fdescfs, msdosfs, udf, and procfs. > > However, some remain, and they require owners: > > File system Owner State > coda rwatson Non-MPSAFE > hpfs ??? Non-MPSAFE > ntfs attilio Non-MPSAFE > nwfs ??? Non-MPSAFE > portalfs ??? Non-MPSAFE > smbfs ??? Non-MPSAFE > reiserfs ??? Non-MPSAFE > xfs ??? Non-MPSAFE > > Any file system that remains on this list will be removed by 10.0 -- > so, if you care about one of the above file systems, please help us > get them updated. You can find more information here, including on the > methodology for making a file system MPSAFE, with worked examples: > > http://wiki.freebsd.org/NONMPSAFE_DEORBIT_VFS > > Robert > _______________________________________________ > freebsd-arch@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-arch > To unsubscribe, send any mail to "freebsd-arch-unsubscribe@freebsd.org" Robert, As we discussed yesterday if you can facilitate a code drop of smbfs I'll shepherd it into the tree. -- Thanks, Josh Paetzel FreeBSD -- The power to serve