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Date:   Wed, 7 Mar 2018 15:01:27 -0800
From:   Andrew Morton <akpm@linux-foundation.org>
To:     Toshi Kani <toshi.kani@hpe.com>
Cc:     mhocko@suse.com, tglx@linutronix.de, mingo@redhat.com,
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        linux-mm@kvack.org, x86@kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] x86/mm: implement free pmd/pte page interfaces
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On Wed,  7 Mar 2018 11:32:27 -0700 Toshi Kani <toshi.kani@hpe.com> wrote:

> Implement pud_free_pmd_page() and pmd_free_pte_page() on x86, which
> clear a given pud/pmd entry and free up lower level page table(s).
> Address range associated with the pud/pmd entry must have been purged
> by INVLPG.

OK, now we have implementations which match the naming ;) Again, is a
cc:stable warranted?

Do you have any preferences/suggestions as to which tree these should
be merged through?  You're hitting core, arm and x86.