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SubjectRe: [RFC] Union mounts/writable overlays design
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Valerie Aurora:
> In writable overlays, every directory will be copied up to the top
> writable overlay, so /u and /u/usr will both have the same st_dev.
> The copy up happens on lookup, so a stat() will trigger this copy up.
> A directory and a regular file in it will have different st_dev's,
> though. Can you foresee any problems with that?

You're right.
I was confused with another implementation of UnionMount, sorry.
I think I had to sleep well.


J. R. Okajima


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