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Date:   Tue, 26 Feb 2019 10:30:09 +0100
From:   Peter Zijlstra <peterz@infradead.org>
To:     "Paul E. McKenney" <paulmck@linux.ibm.com>
Cc:     Andrea Parri <andrea.parri@amarulasolutions.com>,
        linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
        Alan Stern <stern@rowland.harvard.edu>,
        Will Deacon <will.deacon@arm.com>,
        Boqun Feng <boqun.feng@gmail.com>,
        Nicholas Piggin <npiggin@gmail.com>,
        David Howells <dhowells@redhat.com>,
        Jade Alglave <j.alglave@ucl.ac.uk>,
        Luc Maranget <luc.maranget@inria.fr>,
        Akira Yokosawa <akiyks@gmail.com>,
        Daniel Lustig <dlustig@nvidia.com>
Subject: Re: [RFC PATCH] tools/memory-model: Remove (dep ; rfi) from ppo
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On Mon, Feb 25, 2019 at 09:55:17AM -0800, Paul E. McKenney wrote:
> But if you know of any code in the Linux kernel that needs to compare
> pointers, one of which might be in the process of being freed, please
> do point me at it.

I'm having the utmost difficulty of understanding why that would be a
problem. It's just a value. Freeing memory does not affect the actual
memory or any pointers to it.

*confusion*

None of this makes any kind of sense.