From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Huacai Chen <chenhuacai@kernel.org>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
WANG Xuerui <kernel@xen0n.name>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-mips@vger.kernel.org
Subject: Re: [PATCH] mips: drop ranges for definition of ARCH_FORCE_MAX_ORDER
Date: Wed, 22 Mar 2023 09:59:53 +0100 [thread overview]
Message-ID: <20230322085953.GA3910@alpha.franken.de> (raw)
In-Reply-To: <20230322081520.2516226-1-rppt@kernel.org>
On Wed, Mar 22, 2023 at 10:15:20AM +0200, Mike Rapoport wrote:
> From: "Mike Rapoport (IBM)" <rppt@kernel.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@kernel.org>
> ---
> arch/mips/Kconfig | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 3e8b765b8c7b..a0f6e9d0a561 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -2137,13 +2137,9 @@ endchoice
>
> config ARCH_FORCE_MAX_ORDER
> int "Maximum zone order"
> - range 13 63 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
> default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
> - range 12 63 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
> default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
> - range 11 63 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
> default "11" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
> - range 0 63
> default "10"
> help
> The kernel memory allocator divides physically contiguous memory
> --
> 2.35.1
Thank you for cleaning this up.
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]
next prev parent reply other threads:[~2023-03-22 9:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-22 8:15 [PATCH] mips: drop ranges for definition of ARCH_FORCE_MAX_ORDER Mike Rapoport
2023-03-22 8:24 ` Mike Rapoport
2023-03-22 8:59 ` Thomas Bogendoerfer [this message]
2023-03-22 10:02 ` Kirill A. Shutemov
2023-03-22 17:14 ` David Hildenbrand
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230322085953.GA3910@alpha.franken.de \
--to=tsbogend@alpha.franken.de \
--cc=akpm@linux-foundation.org \
--cc=chenhuacai@kernel.org \
--cc=kernel@xen0n.name \
--cc=kirill.shutemov@linux.intel.com \
--cc=kirill@shutemov.name \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=rppt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.