linux-kernel - Re: [PATCH v8 05/11] proc: add helpers to set and get proc hidepid and gid mount options

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Message-ID: <CALCETrVjv04OOdzGNf7sRmRR-KUgY7xdMXA236nHZ1arn0KwVQ@mail.gmail.com>
Date:   Mon, 10 Feb 2020 10:30:45 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     Alexey Gladkov <gladkov.alexey@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>,
        Linux API <linux-api@...r.kernel.org>,
        Linux FS Devel <linux-fsdevel@...r.kernel.org>,
        Linux Security Module <linux-security-module@...r.kernel.org>,
        Akinobu Mita <akinobu.mita@...il.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andy Lutomirski <luto@...nel.org>,
        Daniel Micay <danielmicay@...il.com>,
        Djalal Harouni <tixxdz@...il.com>,
        "Dmitry V . Levin" <ldv@...linux.org>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ingo Molnar <mingo@...nel.org>,
        "J . Bruce Fields" <bfields@...ldses.org>,
        Jeff Layton <jlayton@...chiereds.net>,
        Jonathan Corbet <corbet@....net>,
        Kees Cook <keescook@...omium.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Solar Designer <solar@...nwall.com>
Subject: Re: [PATCH v8 05/11] proc: add helpers to set and get proc hidepid
 and gid mount options

On Mon, Feb 10, 2020 at 7:06 AM Alexey Gladkov <gladkov.alexey@...il.com> wrote:
>
> This is a cleaning patch to add helpers to set and get proc mount
> options instead of directly using them. This make it easy to track
> what's happening and easy to update in future.

On a cursory inspection, this looks like it obfuscates the code, and I
don't see where it does something useful later in the series.  What is
this abstraction for?

--Andy