From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lee Revell <rlrevell@joe-job.com>
Subject: Re: silent semantic changes with reiser4
Date: Thu, 02 Sep 2004 16:47:40 -0400
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Cc: Spam <spam@tnonline.net>, Horst von Brand <vonbrand@inf.utfsm.cl>, Jamie Lokier <jamie@shareable.org>, David Masover <ninja@slaphack.com>, Chris Wedgwood <cw@f00f.org>,  viro@parcelfarce.linux.theplanet.co.uk, Linus Torvalds <torvalds@osdl.org>,  Christoph Hellwig <hch@lst.de>, Hans Reiser <reiser@namesys.com>, linux-fsdevel@vger.kernel.org,  linux-kernel <linux-kernel@vger.kernel.org>, Alexander Lyamin aka FLX <flx@namesys.com>, ReiserFS List <reiserfs-list@namesys.com>
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To: Pavel Machek <pavel@ucw.cz>
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On Thu, 2004-09-02 at 16:43, Pavel Machek wrote:
> Hi!
> 
> > > > >> FWIW, this is how Windows does it now.  As of XP, 'Find files' has an
> > > > >> option, enabled by default, to look inside archives.  If you tell it to
> > > > >> look for a driver in a given directory it will also look inside .cab
> > > > >> and .zip files.  It's extremely useful, I would imagine someone who uses
> > > > >> XP a lot will come to expect this feature.
> > > > 
> > > > > It is trivial to implement this by looking inside the files. I.e., the way
> > > > > mc has done this for ages.
> > > > 
> > > >   Difference is that you can't do "locate" or "find" or "Search".. You
> > > >   would have to open the files in an archive-supporting application
> > > >   such as mc.
> > > 
> > > You really need archive support in find. At the very least you need
> > > option "enter archives" vs. "do not enter archives". Entering archives
> > > automagically is seriously wrong.
> > 
> > But is it efficient to make every application that reads files have to
> > know how to get inside a tar file, just to read its contents?  That
> 
> Application does not have to know how to handle tar/zip/etc, but it
> has to make distinction between "enter archives" and "do not enter
> archives". See uservfs.sf.net.

But how do you cache the information you had to look in the archive for
in a way that other apps can use it?  How do you synchronize access to
the cache and maintain cache coherency in userspace?

Lee