From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: Delays on "first" access to a NFS mount Date: Fri, 16 Mar 2007 21:57:34 +0000 Message-ID: <20070316215734.GA6021@infradead.org> References: <20070307205016.GI26553@fieldses.org> <20070307211729.GO26553@fieldses.org> <20070307215406.GR26553@fieldses.org> <17903.16030.26119.464793@notabene.brown> <20070307230601.GX26553@fieldses.org> <20070316214737.GA3253@infradead.org> <20070316215429.GG4538@fieldses.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Christoph Hellwig , Neil Brown , "Talpey, Thomas" , nfs@lists.sourceforge.net, Simon Peter To: "J. Bruce Fields" 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 1HSKQc-0005Dn-Vf for nfs@lists.sourceforge.net; Fri, 16 Mar 2007 14:57:39 -0700 Received: from pentafluge.infradead.org ([213.146.154.40]) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1HSKQf-0000Zp-0p for nfs@lists.sourceforge.net; Fri, 16 Mar 2007 14:57:41 -0700 In-Reply-To: <20070316215429.GG4538@fieldses.org> 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 Fri, Mar 16, 2007 at 05:54:29PM -0400, J. Bruce Fields wrote: > On Fri, Mar 16, 2007 at 09:47:38PM +0000, Christoph Hellwig wrote: > > - using namespace and the kernel mount code means we need to have > > at least enough information on where these mount points are in > > kernel space. > > - it does however not mean that we need to set up all these mount > > points at boot time! We have a nice scheme to creates mounts > > when a special follow_link operation that is for example used > > in the nfs client for submount, or we could have some sort > > of automounter that does userspace upcalls. > > Note that clients may access filesystems by traversing mountpoints, but > they may also just jump in with a filehandle they got on a previous > boot. So we still need to be able to look up exports by filehandle as > well as by path. Yeah, but an explicit kern_mount is easy. For old dev_t based filehandles anyway, and for uuid or fsid based onces we'd need an upcall for a uuid/fsid to dev_t mapping. ------------------------------------------------------------------------- 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