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

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Date:   Mon, 5 Mar 2018 11:23:27 -0800
From:   Dave Hansen <dave.hansen@...ux.intel.com>
To:     Khalid Aziz <khalid.aziz@...cle.com>, akpm@...ux-foundation.org,
        davem@...emloft.net
Cc:     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 02/21/2018 09:15 AM, Khalid Aziz wrote:
> +/* Arch-specific flags to clear when updating VM flags on protection change */
> +#ifndef VM_ARCH_CLEAR
> +# define VM_ARCH_CLEAR	VM_NONE
> +#endif
> +#define VM_FLAGS_CLEAR	(ARCH_VM_PKEY_FLAGS | VM_ARCH_CLEAR)

Shouldn't this be defining

# define VM_ARCH_CLEAR	ARCH_VM_PKEY_FLAGS

on x86?