Re: [PATCH 0/7] overlay filesystem: request for inclusion

[J. R. Okajima]

Miklos Szeredi:
> Overlayfs will create a private clone of both the lower and upper
> mounts.  The mnt_flags are only modified on the private clone, whose
> sole user is overlayfs itself.

Yes, I've found overlayfs creates private clone mounts. Sorry noise
again.
By cloning privately, users cannot change mount flags. But it will not
be a big problem.

By the way, you might remember that I have asked about overriding
creditials and signals.
When a process issues chmod, rename or something, then the internal
copyup happens. If RLIMIT_FSIZE is set to the process, then it may
fire SIGXFSZ and return EFBIG. It looks strange. But I don't know how
important is it since setting RLIMIT_FSIZE is less popular I am afraid.


J. R. Okajima
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