Re: [PATCH] x86/mm: fix regression with huge pages on PAE

From	Dan Williams <dan.j.williams@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] x86/mm: fix regression with huge pages on PAE
Date	2015-11-13 10:10 +0100
Message-ID	<quiwN-4sk-13@gated-at.bofh.it> (permalink)
References	(6 earlier) <qtAm6-14M-5@gated-at.bofh.it> <qtUNQ-5ZA-3@gated-at.bofh.it> <qtUXw-62X-17@gated-at.bofh.it> <qtV7c-6m2-17@gated-at.bofh.it> <qu5Jg-4A1-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thu, Nov 12, 2015 at 11:29 AM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> On Thu, Nov 12, 2015 at 12:00 AM, Ingo Molnar <mingo@kernel.org> wrote:
[..]
> I have this dim memory of us playing around with just making PAGE_SIZE
> (and thus PAGE_MASK) always be signed, but that it caused other
> problems. Signed types have downsides too.

FWIW, I ran into this recently with the pfn_t patch.  mips and powerpc
have PAGE_MASK as a signed int.
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[PATCH] x86/mm: fix regression with huge pages on PAE "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2015-11-10 00:20 +0100
  Re: [PATCH] x86/mm: fix regression with huge pages on PAE Toshi Kani <toshi.kani@hpe.com> - 2015-11-10 00:50 +0100
    Re: [PATCH] x86/mm: fix regression with huge pages on PAE "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-11-10 01:00 +0100
      Re: [PATCH] x86/mm: fix regression with huge pages on PAE Toshi Kani <toshi.kani@hpe.com> - 2015-11-10 01:20 +0100
  Re: [PATCH] x86/mm: fix regression with huge pages on PAE Borislav Petkov <bp@alien8.de> - 2015-11-10 13:50 +0100
    Re: [PATCH] x86/mm: fix regression with huge pages on PAE "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-11-10 15:00 +0100
      Re: [PATCH] x86/mm: fix regression with huge pages on PAE Borislav Petkov <bp@alien8.de> - 2015-11-10 15:50 +0100
        Re: [PATCH] x86/mm: fix regression with huge pages on PAE "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-11-10 16:10 +0100
          Re: [PATCH] x86/mm: fix regression with huge pages on PAE Borislav Petkov <bp@alien8.de> - 2015-11-10 18:10 +0100
            Re: [PATCH] x86/mm: fix regression with huge pages on PAE Borislav Petkov <bp@alien8.de> - 2015-11-11 11:00 +0100
              Re: [PATCH] x86/mm: fix regression with huge pages on PAE Ingo Molnar <mingo@kernel.org> - 2015-11-12 08:50 +0100
                Re: [PATCH] x86/mm: fix regression with huge pages on PAE "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-11-12 09:00 +0100
                Re: [PATCH] x86/mm: fix regression with huge pages on PAE Ingo Molnar <mingo@kernel.org> - 2015-11-12 09:10 +0100
                Re: [PATCH] x86/mm: fix regression with huge pages on PAE "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2015-11-12 09:50 +0100
                Re: [PATCH] x86/mm: fix regression with huge pages on PAE Ingo Molnar <mingo@kernel.org> - 2015-11-12 10:00 +0100
                Re: [PATCH] x86/mm: fix regression with huge pages on PAE "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-11-12 10:10 +0100
                Re: [PATCH] x86/mm: fix regression with huge pages on PAE Ingo Molnar <mingo@kernel.org> - 2015-11-12 14:40 +0100
                Re: [PATCH] x86/mm: fix regression with huge pages on PAE Ingo Molnar <mingo@kernel.org> - 2015-11-12 10:00 +0100
                Re: [PATCH] x86/mm: fix regression with huge pages on PAE Linus Torvalds <torvalds@linux-foundation.org> - 2015-11-12 20:30 +0100
                Re: [PATCH] x86/mm: fix regression with huge pages on PAE Dan Williams <dan.j.williams@gmail.com> - 2015-11-13 10:10 +0100

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