linux-kernel - Re: [PATCH v12 08/11] mm: Clear arch specific VM flags on protection change

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Message-Id: <20180306144814.86eac0c28e98b50d550fc2fd@linux-foundation.org>
Date:   Tue, 6 Mar 2018 14:48:14 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Khalid Aziz <khalid.aziz@...cle.com>
Cc:     davem@...emloft.net, dave.hansen@...ux.intel.com, mhocko@...e.com,
        jack@...e.cz, kirill.shutemov@...ux.intel.com,
        ross.zwisler@...ux.intel.com, willy@...radead.org,
        hughd@...gle.com, n-horiguchi@...jp.nec.com, mgorman@...e.de,
        jglisse@...hat.com, dave.jiang@...el.com, dan.j.williams@...el.com,
        anthony.yznaga@...cle.com, nadav.amit@...il.com,
        zi.yan@...rutgers.edu, aarcange@...hat.com,
        khandual@...ux.vnet.ibm.com, aneesh.kumar@...ux.vnet.ibm.com,
        henry.willard@...cle.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org,
        Khalid Aziz <khalid@...ehiking.org>
Subject: Re: [PATCH v12 08/11] mm: Clear arch specific VM flags on
 protection change

On Wed, 21 Feb 2018 10:15:50 -0700 Khalid Aziz <khalid.aziz@...cle.com> wrote:

> When protection bits are changed on a VMA, some of the architecture
> specific flags should be cleared as well. An examples of this are the
> PKEY flags on x86. This patch expands the current code that clears
> PKEY flags for x86, to support similar functionality for other
> architectures as well.
> 
> Signed-off-by: Khalid Aziz <khalid.aziz@...cle.com>
> Cc: Khalid Aziz <khalid@...ehiking.org>
> Reviewed-by: Anthony Yznaga <anthony.yznaga@...cle.com>

Acked-by: Andrew Morton <akpm@...ux-foundation.org>