From: Trond Myklebust Subject: Re: [PATCH 2/3] NFS: Add NFS_MOUNT_NONEGDE flag to avoid caching negative dentries Date: Tue, 15 Jan 2008 11:52:52 -0500 Message-ID: <1200415972.7702.7.camel@heimdal.trondhjem.org> References: <20080115163013.GC18911@newbie.thebellsplace.net> Mime-Version: 1.0 Content-Type: text/plain Cc: linux-nfs@vger.kernel.org To: Bob Bell Return-path: Received: from pat.uio.no ([129.240.10.15]:37484 "EHLO pat.uio.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751059AbYAOQw4 (ORCPT ); Tue, 15 Jan 2008 11:52:56 -0500 In-Reply-To: <20080115163013.GC18911-y89O8yXFYpDSsb2jM9SCN5/hYUUxywnI@public.gmane.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Tue, 2008-01-15 at 11:30 -0500, Bob Bell wrote: > From: Bob Bell > > Add NFS_MOUNT_NONEGDE mount flag. When this flag is set on a mounted > NFS filesystem, negative dentries for that filesystem will not be > cached. This can help address cache coherency when the NFS server does > not provide sufficiently fine-grained timestamps to consistently > distinguish when a directory has been modified, though performance when > repeatedly accessing filenames for files that do not exist may be > impacted. > > Signed-off-by: Bob Bell > --- The patch itself looks OK. My only gripe is the two names 'negde' and 'nonegde'. Can we find something that rolls a bit more smoothly off the tongue? How about something like 'cacheneglookup' 'nocacheneglookup'? Better suggestions, anyone? Cheers Trond