linux-kernel - Re: [PATCH 1/4] mm: make the __PAGETABLE_PxD

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Message-ID: <20181031132331.s5l77nsjoyiwhqhd@kshutemo-mobl1>
Date:   Wed, 31 Oct 2018 16:23:31 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Martin Schwidefsky <schwidefsky@...ibm.com>
Cc:     Li Wang <liwang@...hat.com>, Guenter Roeck <linux@...ck-us.net>,
        Janosch Frank <frankja@...ux.vnet.ibm.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>
Subject: Re: [PATCH 1/4] mm: make the __PAGETABLE_PxD_FOLDED defines non-empty

On Wed, Oct 31, 2018 at 01:59:58PM +0100, Martin Schwidefsky wrote:
> Change the currently empty defines for __PAGETABLE_PMD_FOLDED,
> __PAGETABLE_PUD_FOLDED and __PAGETABLE_P4D_FOLDED to return 1.
> This makes it possible to use __is_defined() to test if the
> preprocessor define exists.
> 
> Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
 Kirill A. Shutemov