[PATCH 02/14] arm64: drop ranges in definition of ARCH_FORCE_MAX_ORDER
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- To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
- Subject: [PATCH 02/14] arm64: drop ranges in definition of ARCH_FORCE_MAX_ORDER
- From: Mike Rapoport <rppt@xxxxxxxxxx>
- Date: Thu, 23 Mar 2023 11:21:44 +0200
- Cc: Arnd Bergmann <arnd@xxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Christophe Leroy <christophe.leroy@xxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Dinh Nguyen <dinguyen@xxxxxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Guo Ren <guoren@xxxxxxxxxx>, John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>, "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>, Max Filippov <jcmvbkbc@xxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxx>, Rich Felker <dalias@xxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Yoshinori Sato <ysato@xxxxxxxxxxxxx>, Zi Yan <ziy@xxxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-csky@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linux-xtensa@xxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx
- In-reply-to: <20230323092156.2545741-1-rppt@kernel.org>
- References: <20230323092156.2545741-1-rppt@kernel.org>
From: "Mike Rapoport (IBM)" <rppt@xxxxxxxxxx>
It is not a good idea to change fundamental parameters of core memory
management. Having predefined ranges suggests that the values within
those ranges are sensible, but one has to *really* understand
implications of changing MAX_ORDER before actually amending it and
ranges don't help here.
Drop ranges in definition of ARCH_FORCE_MAX_ORDER
Signed-off-by: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
---
arch/arm64/Kconfig | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index e60baf7859d1..bab6483e4317 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1489,9 +1489,7 @@ config XEN
config ARCH_FORCE_MAX_ORDER
int "Maximum zone order" if ARM64_4K_PAGES || ARM64_16K_PAGES
default "13" if ARM64_64K_PAGES
- range 11 13 if ARM64_16K_PAGES
default "11" if ARM64_16K_PAGES
- range 10 15 if ARM64_4K_PAGES
default "10"
help
The kernel memory allocator divides physically contiguous memory
--
2.35.1
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