Messages in this thread | | | Date | Tue, 7 Feb 2017 11:49:33 -0800 | From | Christoph Hellwig <> | Subject | Re: [RFC 1/1] shiftfs: uid/gid shifting bind mount |
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On Tue, Feb 07, 2017 at 11:02:03AM -0800, James Bottomley wrote: > > Another option would be to require something like a project as used > > for project quotas as the root. This would also be conveniant as it > > could storge the used remapping tables. > > So this would be like the current project quota except set on a > subtree? I could see it being done that way but I don't see what > advantage it has over using flags in the subtree itself (the mapping is > known based on the mount namespace, so there's really only a single bit > of information to store).
projects (which are the underling concept for project quotas) are per-subtree in practice - the flag is set on an inode and then all directories and files underneath inherit the project ID, hardlinking outside a project is prohinited.
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