linux-kernel - Re: [PATCH] MIPS: Increase range of CONFIG_FORCE_MAX

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Message-ID: <20200922160218.GA10358@alpha.franken.de>
Date:   Tue, 22 Sep 2020 18:02:18 +0200
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     od@...c.me, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] MIPS: Increase range of CONFIG_FORCE_MAX_ZONEORDER

On Thu, Sep 17, 2020 at 03:35:28PM +0200, Paul Cercueil wrote:
> There is nothing that prevents us from using lower maximum values.
> It's something that we actually want, when using bigger page sizes on
> devices with low RAM.
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> ---
>  arch/mips/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 632fe8fe68c4..dca2bbdbfc24 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -2251,7 +2251,7 @@ config FORCE_MAX_ZONEORDER
>  	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
>  	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
>  	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
> -	range 11 64
> +	range 0 64

Do we need the range at all ? Most other archs don't use a range...

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]