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Date: Fri, 15 Jun 2018 02:00:23 -0700
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: Reading/changing projid of a symlink
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On Fri, Jun 15, 2018 at 10:57:24AM +0200, Carlos Maiolino wrote:
> Thanks for the info. I always thought project quotas were designed for
> directory-tree granularity, and user/group quotas as a file-based granularity.
> But, out of curiosity, if this is not a stupid question...
> If project quotas was initially designed as a per-file usage use case in mind,
> what would make it different from group quota for example?

IRIX had projects integrated into the whole OS, that these did fit into.
Group quotas were only added to XFS after the Linux port.