linux-kernel - Re: [PATCHv2] mm, page_vma_mapped: Drop faulty pointer arithmetics in check

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Message-ID: <CA+55aFzSV_XPv8UBPVKnppeJ3cCeibQxzKvRDjFDJUBBJvXP=w@mail.gmail.com>
Date:   Sun, 21 Jan 2018 17:49:30 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...nel.org>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        linux-mm <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>
Subject: Re: [PATCHv2] mm, page_vma_mapped: Drop faulty pointer arithmetics in check_pte()

On Sun, Jan 21, 2018 at 3:49 PM, Tetsuo Handa
<penguin-kernel@...ove.sakura.ne.jp> wrote:
>
> As far as I tested, using helper function made no difference. Unless I
> explicitly insert barriers like cpu_relax() or smp_mb() between these,
> the object side does not change.

Ok, thanks for checking.

> You can apply with
>
>   Acked-by: Michal Hocko <mhocko@...e.com>
>   Tested-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>

Applied and pushed out. Thanks everybody.

              Linus