Re: union mount (was Re: Transparent mounts)

Pavel Machek (pavel@suse.cz)
Fri, 19 Nov 1999 23:47:46 +0100


Hi!

> Sorry for bothering the list once again with my humble suggestion but coming
> back to ClearCase: why not implement the concept of a view:
>
> 1. You specify a set of rules which say which file is seen if there is a
> conflict.
> 2. In the case discussed here you also specify where to write.
>
> On mount these are read by a daemon and the kernel shovels all file I/O to this
> daemon into user-space. The daemon goes through 1 and 2 and does the actual
> file I/O.

Sounds like podfuk to me
:-). http://atrey.karlin.mff.cuni.cz/~pavel/podfuk/podfuk.html. Oh,
you'll have to specify your rules in C.

Podfuk might be really usefull for testing if semantics you propose is
reasonable, before putting it into kernelspace.
Pavel

-- 
I'm really pavel@ucw.cz. Look at http://195.113.31.123/~pavel.  Pavel
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