linux-kernel - Re: [PATCH] mips: drop ranges for definition of ARCH_FORCE_MAX

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Message-ID: <20230322100258.bgqgawzpfoetqlbc@box>
Date:   Wed, 22 Mar 2023 13:02:58 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        WANG Xuerui <kernel@...0n.name>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-mips@...r.kernel.org
Subject: Re: [PATCH] mips: drop ranges for definition of ARCH_FORCE_MAX_ORDER

On Wed, Mar 22, 2023 at 10:15:20AM +0200, Mike Rapoport wrote:
> From: "Mike Rapoport (IBM)" <rppt@...nel.org>
> 
> MIPS defines insane ranges for ARCH_FORCE_MAX_ORDER allowing MAX_ORDER
> up to 63, which implies maximal contiguous allocation size of 2^63
> pages.
> 
> Drop bogus definitions of ranges for ARCH_FORCE_MAX_ORDER and leave it a
> simple integer with sensible defaults.
> 
> Users that *really* need to change the value of ARCH_FORCE_MAX_ORDER
> will be able to do so but they won't be mislead by the bogus ranges.
> 
> Signed-off-by: Mike Rapoport (IBM) <rppt@...nel.org>

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

-- 
  Kiryl Shutsemau / Kirill A. Shutemov