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Date: Mon, 24 Oct 2022 15:55:26 -0400
From: Rich Felker <>
Subject: Re: Per-thread file system attributes

On Mon, Oct 24, 2022 at 06:41:51PM +0200, Florian Weimer wrote:
> Some userspace file servers (e.g. Samba) want to change the current
> directory (or chroot or umask) on individual threads, rather than
> affecting the entire process.  In some cases, this can avoid a userspace
> emulation of kernel pathname resolution.

Isn't this what the *at() functions were for? Why do we need a second
solution to the same problem?


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