From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Howells Subject: Re: Pull request for FS-Cache, including NFS patches Date: Fri, 19 Dec 2008 18:24:19 +0000 Message-ID: <12342.1229711059@redhat.com> References: <7A24DF798E223B4C9864E8F92E8C93EC01AAF504@SACMVEXC1-PRD.hq.netapp.com> Cc: dhowells@redhat.com, "Andrew Morton" , sfr@canb.auug.org.au, linux-kernel@vger.kernel.org, nfsv4@linux-nfs.org, steved@redhat.com, linux-fsdevel@vger.kernel.org, rwheeler@redhat.com To: "Muntz, Daniel" Return-path: Received: from mx2.redhat.com ([66.187.237.31]:58406 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751747AbYLSSYi (ORCPT ); Fri, 19 Dec 2008 13:24:38 -0500 In-Reply-To: <7A24DF798E223B4C9864E8F92E8C93EC01AAF504@SACMVEXC1-PRD.hq.netapp.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Muntz, Daniel wrote: > AFS was designed to support local disk cache, so with callbacks you can get a > consistent system. It's less the callbacks and more the data version number that's important. > I'll ass-u-me that Linux flavors of AFS have callbacks. They do. > It should be possible to *integrate* NFSv4.x with FS-Cache similarly (i.e., I > don't think you could drop it in as a 'black-box' without breaking something, > unless you explicitly build an independent proxy cache server). NFSv4 has equivalents of both the data version number and callbacks. David