linux-kernel - Re: [PATCH v4 5/6] add listmount(2) syscall

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Date:   Wed, 8 Nov 2023 08:53:30 +0100
From:   Christian Brauner <brauner@...nel.org>
To:     Jonathan Corbet <corbet@....net>
Cc:     Miklos Szeredi <mszeredi@...hat.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-api@...r.kernel.org, linux-man@...r.kernel.org,
        linux-security-module@...r.kernel.org, Karel Zak <kzak@...hat.com>,
        Ian Kent <raven@...maw.net>,
        David Howells <dhowells@...hat.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <christian@...uner.io>,
        Amir Goldstein <amir73il@...il.com>,
        Matthew House <mattlloydhouse@...il.com>,
        Florian Weimer <fweimer@...hat.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v4 5/6] add listmount(2) syscall

> Why use struct __mount_arg (or struct mnt_id_req :) here rather than
> just passing in the mount ID directly?  You don't use the request_mask

Please see Arnd's detailed summary here:
https://lore.kernel.org/lkml/44631c05-6b8a-42dc-b37e-df6776baa5d4@app.fastmail.com