From: Olaf Kirch Subject: Re: [PATCH 3/4 Revised] NLM - kernel lockd-statd changes Date: Tue, 17 Apr 2007 13:52:26 +0200 Message-ID: <200704171352.27620.okir@lst.de> References: <46156FA0.4030506@redhat.com> <17948.26876.426822.963222@notabene.brown> <20070413191615.GU1804@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Neil Brown , cluster-devel@redhat.com, nfs@lists.sourceforge.net To: Lon Hohberger Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list2-new.sourceforge.net with esmtp (Exim 4.43) id 1HdmEj-0008Q3-8u for nfs@lists.sourceforge.net; Tue, 17 Apr 2007 04:52:41 -0700 Received: from verein.lst.de ([213.95.11.210] helo=mail.lst.de) by mail.sourceforge.net with esmtps (TLSv1:DES-CBC3-SHA:168) (Exim 4.44) id 1HdmEl-00042O-1p for nfs@lists.sourceforge.net; Tue, 17 Apr 2007 04:52:43 -0700 In-Reply-To: <20070413191615.GU1804@redhat.com> List-Id: "Discussion of NFS under Linux development, interoperability, and testing." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfs-bounces@lists.sourceforge.net Errors-To: nfs-bounces@lists.sourceforge.net On Friday 13 April 2007 21:16, Lon Hohberger wrote: > The simplification here is a bit incorrect; we need to be able to handle > a given *set* of size >= 1 IPs which is paired with a *set* of size >= 1 > of fsids. The sets are not broken up (that is, we won't be moving > file systems between IP addresses or vice-vers), but the number of > IPs:filesystems need not be 1:1. > > * 1 file system, 1 ip address > * 2 fs, 1 ip > * 1 ip, 2 fs > * 18 ip, 42 fs. So you move a bunch of file systems with a bunch of IPs, and that information is recorded somewhere. So if you know you're moving set X, which goes with IPs 1.2.3.4 and 1.2.3.5, you might as well send notifications from both these IPs to all clients having established locks on a file system from that set. I think in term of correctness, it's better to send an SM_NOTIFY for each IP associated with such a set, anyway. To me, it seems the crucial point of information here when monitoring a client, is which file system (or set of file systems) the client has accessed. Olaf -- Olaf Kirch | --- o --- Nous sommes du soleil we love when we play okir@lst.de | / | \ sol.dhoop.naytheet.ah kin.ir.samse.qurax ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs