linux-kernel - Re: [PATCH 02/12] arm: nommu: use pgtable-nopud instead of 4level-fixup

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Message-ID: <20191023094025.GY25745@shell.armlinux.org.uk>
Date:   Wed, 23 Oct 2019 10:40:25 +0100
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Arnd Bergmann <arnd@...db.de>,
        "David S. Miller" <davem@...emloft.net>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Greentime Hu <green.hu@...il.com>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Helge Deller <deller@....de>,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
        Jeff Dike <jdike@...toit.com>,
        "Kirill A. Shutemov" <kirill@...temov.name>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Mark Salter <msalter@...hat.com>,
        Matt Turner <mattst88@...il.com>,
        Michal Simek <monstr@...str.eu>,
        Richard Weinberger <richard@....at>,
        Sam Creasey <sammy@...my.net>,
        Vincent Chen <deanbo422@...il.com>,
        Vineet Gupta <Vineet.Gupta1@...opsys.com>,
        linux-alpha@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-c6x-dev@...ux-c6x.org,
        linux-kernel@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linux-parisc@...r.kernel.org, linux-um@...ts.infradead.org,
        sparclinux@...r.kernel.org, Mike Rapoport <rppt@...ux.ibm.com>
Subject: Re: [PATCH 02/12] arm: nommu: use pgtable-nopud instead of
 4level-fixup

On Wed, Oct 23, 2019 at 12:28:51PM +0300, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@...ux.ibm.com>
> 
> The generic nommu implementation of page table manipulation takes care of
> folding of the upper levels and does not require fixups.
> 
> Simply replace of include/asm-generic/4level-fixup.h with
> include/asm-generic/pgtable-nopud.h.
> 
> Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>

Acked-by: Russell King <rmk+kernel@...linux.org.uk>

Thanks.

> ---
>  arch/arm/include/asm/pgtable.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
> index 3ae120c..eabcb48 100644
> --- a/arch/arm/include/asm/pgtable.h
> +++ b/arch/arm/include/asm/pgtable.h
> @@ -12,7 +12,7 @@
>  
>  #ifndef CONFIG_MMU
>  
> -#include <asm-generic/4level-fixup.h>
> +#include <asm-generic/pgtable-nopud.h>
>  #include <asm/pgtable-nommu.h>
>  
>  #else
> -- 
> 2.7.4
> 
> 

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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