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From:   Linus Torvalds <torvalds@linuxfoundation.org>
Date:   Fri, 10 Dec 2021 11:14:46 -0800
Message-ID: <CAHk-=wjpO7=Nk3JRHUWOvsR3v688S25MM+88q3=tP1d5iN1zfw@mail.gmail.com>
Subject: Re: [PATCH 2/6] cgroup: Allocate cgroup_file_ctx for kernfs_open_file->priv
To:     Tejun Heo <tj@kernel.org>
Cc:     "Eric W. Biederman" <ebiederm@xmission.com>,
        Michal Koutny <mkoutny@suse.com>, Jens Axboe <axboe@kernel.dk>,
        Kees Cook <keescook@chromium.org>,
        Oleg Nesterov <oleg@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Jim Newsome <jnewsome@torproject.org>,
        Alexey Gladkov <legion@kernel.org>,
        Andy Lutomirski <luto@amacapital.net>,
        Jann Horn <jannh@google.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Security Officers <security@kernel.org>,
        Kernel Team <kernel-team@fb.com>
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On Fri, Dec 10, 2021 at 11:06 AM Tejun Heo <tj@kernel.org> wrote:
>
> Just so that I'm understanding you correctly. The following is what I was
> suggesting. ie. just dropping the union and making the iterator embedded:

Oh, I thought that by keeping them separate you meant still keeping the union.

But you just meant separating them into their own "namespace" sub-structures.

That's fine by me, I don't think it matters, and if you find the
namespacing helpful go right ahead.

             Linus