linux-kernel - Re: [PATCH v8 03/11] proc: move /proc/{self|thread-self} dentries to proc_fs

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Date:   Wed, 12 Feb 2020 16:00:38 +0100
From:   Alexey Gladkov <gladkov.alexey@...il.com>
To:     Andy Lutomirski <luto@...nel.org>
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>,
        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 03/11] proc: move /proc/{self|thread-self} dentries to
 proc_fs_info

On Mon, Feb 10, 2020 at 10:23:23AM -0800, Andy Lutomirski wrote:
> On Mon, Feb 10, 2020 at 7:06 AM Alexey Gladkov <gladkov.alexey@...il.com> wrote:
> >
> > This is a preparation patch that moves /proc/{self|thread-self} dentries
> > to be stored inside procfs fs_info struct instead of making them per pid
> > namespace. Since we want to support multiple procfs instances we need to
> > make sure that these dentries are also per-superblock instead of
> > per-pidns,
> 
> The changelog makes perfect sense so far...
> 
> > unmounting a private procfs won't clash with other procfs
> > mounts.
> 
> This doesn't parse as part of the previous sentence.  I'm also not
> convinced that this really involves unmounting per se.  Maybe just
> delete these words.

Sure. I will remove this part.

-- 
Rgrds, legion