m68k: reword ARCH_FORCE_MAX_ORDER prompt and help text

The prompt and help text of ARCH_FORCE_MAX_ORDER are not even close to
describe this configuration option.

Update both to actually describe what this option does.

Link: https://lkml.kernel.org/r/20230324052233.2654090-7-rppt@kernel.org
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: David Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Rich Felker <dalias@libc.org>
Cc: "Russell King (Oracle)" <linux@armlinux.org.uk>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index c9df657..e530bc8 100644 (file)
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu
@@ -398,21 +398,23 @@ config SINGLE_MEMORY_CHUNK
          Say N if not sure.
 
 config ARCH_FORCE_MAX_ORDER
-       int "Maximum zone order" if ADVANCED
+       int "Order of maximal physically contiguous allocations" if ADVANCED
        depends on !SINGLE_MEMORY_CHUNK
        default "10"
        help
-         The kernel memory allocator divides physically contiguous memory
-         blocks into "zones", where each zone is a power of two number of
-         pages.  This option selects the largest power of two that the kernel
-         keeps in the memory allocator.  If you need to allocate very large
-         blocks of physically contiguous memory, then you may need to
-         increase this value.
+         The kernel page allocator limits the size of maximal physically
+         contiguous allocations. The limit is called MAX_ORDER and it
+         defines the maximal power of two of number of pages that can be
+         allocated as a single contiguous block. This option allows
+         overriding the default setting when ability to allocate very
+         large blocks of physically contiguous memory is required.
 
          For systems that have holes in their physical address space this
          value also defines the minimal size of the hole that allows
          freeing unused memory map.
 
+         Don't change if unsure.
+
 config 060_WRITETHROUGH
        bool "Use write-through caching for 68060 supervisor accesses"
        depends on ADVANCED && M68060