Messages in this thread | | | Date | Sun, 27 Aug 2006 19:15:10 +0200 | From | Jörn Engel <> | Subject | Re: [RFC] VFS: FS CoW using redirection |
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On Sat, 26 August 2006 22:05:21 +0300, Al Boldi wrote: > > So what was the rejecting theme?
I don't believe there was one. Jan simply didn't push much, so noone was forced to resist him. And noone else needed union mount enough to push Jan.
> > Or you can give Unionfs a try: http://www.unionfs.org > > UnionFS is great, but it incurs additional overhead, as it lives below the > real VFS. What could be really great, is to move some basic functionality > abstractions from UnionFS into VFS proper.
Welcome to Jan's work. :)
If you want to make this vision happen, one of the missing pieces is a method for copyup, an in-kernel copying routine. Unionfs needs is just the same as Jan's patches do and in the past Linus didn't like my approach of using sendfile for it. You could take a stab at the splice code and see how that can be used for copyup.
Jörn
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