Messages in this thread | | | Date | Wed, 13 Apr 2005 17:57:46 +0100 | From | Jamie Lokier <> | Subject | Re: [RFC] FUSE permission modell (Was: fuse review bits) |
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Miklos Szeredi wrote: > > Look up the rather large linux-kernel & linux-fsdevel thread "silent > > semantic changes with reiser4" and it's followup threads, from last > > year. > > Wow, it's 700+ messages. I got through the first 40, and already feel > dizzy :)
It's easier if you skip the ones by Hans and their immediate followups :)
(Nothing personal, it's that Hans is mostly justifying reiser4's behaviour, and the posts you really need to read aren't about reiser4).
> > It's already been tried. You will also find sensible ideas on what > > semantics it should have to do it properly. > > OK, I understand the "slash -> directory, no-slash -> regular file" > semantics. > > How do you envision implementing this for "mount directory over file"?
Somewhere deep in that thread is a discussion between Al Viro and Linus on it.
> A new mount flag indicating that it's only to be followed down if > there's a slash after the mountpoint?
The new flag would indicate more than that: These mounts should be detachable in the sense that deleting the file is possible, and perhaps renamable/linkable too. That's the stuff Al Viro discusses in some detail in the big thread.
Ideally we'd like automounting, a bit like the Hurd's translators. Attached to files (using an xattr or something, and executed with the uid/gid of the file owner), and also per-user "pattern->action" options for matching files with a certain type (e.g. tgz/zip/deb/rpm/xml).
But that can be added much later, as it's an orthogonal feature.
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