From linux-cifs  Thu Apr 25 19:21:10 2024
From: Linus Torvalds <torvalds () linux-foundation ! org>
Date: Thu, 25 Apr 2024 19:21:10 +0000
To: linux-cifs
Subject: Re: 128 bit uid/gid (UUID) possible?
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On Thu, 25 Apr 2024 at 12:17, David Mulder <dmulder@suse.com> wrote:
>
> What is the possibility of increasing the uid/gid size in the kernel from 32bits to 128bits?

Nope.

We don't have user-space interfaces for it (st_uid is 32-bit), and the
pain is not worth any theoretical gain.

                Linus