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From: Roland Dreier <roland@purestorage.com>
Date: Wed, 29 Aug 2018 12:58:00 -0700
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Subject: Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only
 contains page frame numbers"
To: Guenter Roeck <linux@roeck-us.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Ben Hutchings <ben.hutchings@codethink.co.uk>,
        LKML <linux-kernel@vger.kernel.org>, stable@vger.kernel.org,
        matt@codeblueprint.co.uk, bp@suse.de,
        Andrew Morton <akpm@linux-foundation.org>,
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        Ard Biesheuvel <ard.biesheuvel@linaro.org>, bp@alien8.de,
        brgerst@gmail.com, davej@codemonkey.org.uk, dvlasenk@redhat.com,
        "H. Peter Anvin" <hpa@zytor.com>,
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        linux-efi@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
        Yazen.Ghannam@amd.com
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> > Perhaps just the patch that Andi posted to the stable list helps out
> > here?
> >
>
> For reference:
>
> https://www.spinics.net/lists/stable/msg253357.html
>
> That would be the most straightforward and simple fix, so I would prefer
> to go with it if it works.

Sorry for being slow, it turned out to take a slightly bigger stack of
patches to get everything working.

I agree, Andi's simple fix is better anyway.

 - R.