linux-kernel - Re: [PATCH v3 12/17] arm64, trans_pgd: complete generalization of trans

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Message-ID: <CA+CK2bDxK5DHARkAUxzodhMDqokqEy3Y12F-bgHPF9g9K496hA@mail.gmail.com>
Date:   Fri, 6 Sep 2019 15:06:36 -0400
From:   Pavel Tatashin <pasha.tatashin@...een.com>
To:     James Morse <james.morse@....com>
Cc:     James Morris <jmorris@...ei.org>, Sasha Levin <sashal@...nel.org>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        kexec mailing list <kexec@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>,
        Catalin Marinas <catalin.marinas@....com>, will@...nel.org,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Vladimir Murzin <vladimir.murzin@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Bhupesh Sharma <bhsharma@...hat.com>,
        linux-mm <linux-mm@...ck.org>,
        Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH v3 12/17] arm64, trans_pgd: complete generalization of trans_pgds

On Fri, Sep 6, 2019 at 11:23 AM James Morse <james.morse@....com> wrote:
>
> Hi Pavel,
>
> On 21/08/2019 19:31, Pavel Tatashin wrote:
> > Make the last private functions in page table copy path generlized for use
> > outside of hibernate.
> >
> > Switch to use the provided allocator, flags, and source page table. Also,
> > unify all copy function implementations to reduce the possibility of bugs.
>
> By changing it? No one has reported any problems. We're more likely to break it making
> unnecessary changes.
>
> Why is this necessary?

I tried to make it cleaner, but if you think the final version does
not make it better, I will keep the current versions.

Thank you,
Pasha