> According to unionfs document 'Technical Report FSL-04-01b',
> unionfs_rename should copyup correctly. Shoud we address the bug of
> copyup in rename first?
Finally, I've found some comments left in rename.c,
/* We can't copyup a directory, because it may involve huge
* numbers of children, etc. Doing that in the kernel would
* be ungood.
*/
Well, we have to admit.
Junjiro Okajima
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