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Re: union mounts, mfs, and newsyslog
On Mon, Jul 06, 2009 at 10:30:57PM -0400, matthew sporleder wrote:
> > If you want to make it work, the first step is probably to figure out
> > what it's doing: create a simple test case that exhibits the same
> > behavior (this is not necessarily so trivial...) and then poke into
> > the kernel to figure out what union_rename thinks it's doing.
> > However... there are a number of more or less insoluble problems with
> > rename and unionfs (in more complicated cases) and you might prefer
> > not to get involved.
> /* ren.c */
> I guess when a rename is passed to the lower layer it should be turned
> into a copy at the upper layer and then a rename.
Yeah, it should, and I would have thought it would have, but, well,
it's onionfs. I suspect half the places that should trigger copyups
Can you file this in a PR so it doesn't get forgotten? It is unlikely
that anyone's going to fix it anytime soon, unless you do (and I'd
sort of advise against trying) but there's always a possibility that
someone sometime will make a serious try at fixing up unionfs.
David A. Holland
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