Date: Wed, 19 Sep 2007 04:16:44 +0200 From: Kurt Jaeger <lists@c0mplx.org> To: Daichi GOTO <daichi@ongs.co.jp> Cc: freebsd-current@freebsd.org, freebsd-stable@freebsd.org Subject: Re: Unionfs patchset p19 commit? Message-ID: <20070919021644.GG2061@home.c0mplx.org> In-Reply-To: <46EF6386.9050700@ongs.co.jp> References: <200709141103.18612.h.schmalzbauer@omnisec.de> <20070914110024.G14481@fledge.watson.org> <46EBEA18.3080800@ongs.co.jp> <20070915170104.GF2061@home.c0mplx.org> <46EF6386.9050700@ongs.co.jp>
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Hi! > >>I have a big hope to get merged into FreeBSD until > >>7-RELEASE. Progress is step by step slowly, but going > >>forward absolutely. If you have interest in unionfs > >>improvements, push your passion to re@ and fs@ committers ;-) > > > >Did you have a chance to look into this ? > > > >http://lists.freebsd.org/pipermail/freebsd-stable/2007-June/035798.html > Already we have fixed above issue. [...] I'm compiling this patch on my test system right now. Another issue is userland support for unionfs, e.g. in fstat, as described on this page: http://c0mplx.org/src/fstat-unionfs-patch/ Do you plan to analyse/investigate this topic ? There's another topic if one uses unionfs in jail() setups: How to backup the files, and only those files that a different from the base ? If I traverse a mounted unionfs, how do I know where data is coming from, the lower mount or the higher mount ? If I can't tell the difference, I'll backup quite a lot of stuff multiple times. I've experimented a little and found no easy way to tell lower from upper unless I open the file (which sounds expensive). Have a look at http://c0mplx.org/src/isunionfs.c -- does this sound like a way to go ? -- pi@c0mplx.org +49 171 3101372 13 years to go !
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