From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: reiser4 plugins (was: silent semantic changes with reiser4) Date: Thu, 26 Aug 2004 17:37:48 +0200 Sender: linux-fsdevel-owner@vger.kernel.org Message-ID: <20040826153748.GA3700@lst.de> References: <20040826014542.4bfe7cc3.akpm@osdl.org> <1093522729.9004.40.camel@leto.cs.pocnet.net> <20040826124929.GA542@lst.de> <1093525234.9004.55.camel@leto.cs.pocnet.net> <20040826130718.GB820@lst.de> <1093526273.11694.8.camel@leto.cs.pocnet.net> <20040826132439.GA1188@lst.de> <1093527307.11694.23.camel@leto.cs.pocnet.net> <20040826134034.GA1470@lst.de> <1093528683.11694.36.camel@leto.cs.pocnet.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Christoph Hellwig , Andrew Morton , Hans Reiser , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, flx@namesys.com, torvalds@osdl.org, reiserfs-list@namesys.com Return-path: Received: from verein.lst.de ([213.95.11.210]:24793 "EHLO mail.lst.de") by vger.kernel.org with ESMTP id S269054AbUHZPh5 (ORCPT ); Thu, 26 Aug 2004 11:37:57 -0400 To: Christophe Saout Content-Disposition: inline In-Reply-To: <1093528683.11694.36.camel@leto.cs.pocnet.net> List-Id: linux-fsdevel.vger.kernel.org > > compression or encryption must sit below the pagecache to work nicely, > > and this hint things that usually sit at the pagecache level. But let's > > assume you have a valid use for different file_operations, why don't you > > simply add in different file_operations instead of adding another > > internal dispatch layer? > > I don't know, ask Hans. How could the VFS know it a filesystem wants to > do something specific with a file that is completely transparent to the > VFS? The VFS shouldn't, that the whole point. That's why it allows the filesystem to register different method tables for each object.