> Hello,
>
> I don't think this issue has been recently discussed, but if what I ask
> is stupid, please do not shoot me.
>
> BSD has an option called 'union' that makes it somehow merge a mounted
> filesystem with the files that already exist: files are created on the
> newly mounted filesystem, but the underlying files may be accessed if no
> file with the same name exists on the new filesystem.
Well, Linus OKed FIFO patch, so now the obstacle to offloading fs-specific
portion of inode is gone. I'll start feeding the corresponding patches to
2.3 as soon as 2.3.7-pre will open. So we probably will have light-weight
inodes reasonably soon. As for dcache side - we are almost there. So
unionfs may show up in a month or so.
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