From mboxrd@z Thu Jan 1 00:00:00 1970 From: "J. Bruce Fields" Subject: Re: asynchronous locks for cluster exports Date: Mon, 26 Feb 2007 14:52:32 -0500 Message-ID: <20070226195232.GC6412@fieldses.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: nfs@lists.sourceforge.net, Marc Eshel To: linux-fsdevel@vger.kernel.org Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfs-bounces@lists.sourceforge.net Errors-To: nfs-bounces@lists.sourceforge.net List-Id: linux-fsdevel.vger.kernel.org On Sat, Feb 03, 2007 at 12:30:55AM -0500, J. Bruce Fields wrote: > > This is another attempt at a posix locking interface that allows us to > provide NFS clients with cluster-coherent locking without blocking lockd > while the filesystem goes off and talks to other nodes. Marc and I have an updated version of this at: git://linux-nfs.org/~bfields/linux.git (See the server-cluster-locking-api branch.) Changes include: - bugfixes for GFS2; thanks to some setup help from Wendy Chang and others, Marc has been able to run locking tests against an nfs-exported GFS2 filesystem - preallocation of storage for conflicting lock in lockd's testlock implementation, to avoid a race identified by Trond - Cleanup suggested by Christoph and others, including: - creation of posix-to-flock helper functions - rewrite of posix_test_lock interface to agree with ->lock( ,F_GETLK, ) - removal of some unnecessary parentheses, untangling of some slightly tortured logic We're hoping to get a detailed review from Trond sometime in the coming month, after which we'll probably mailbomb linux-fsdevel again, but any comments are welcome in the meantime. --b. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs