diff mbox series

[v3,11/14] sh: reword ARCH_FORCE_MAX_ORDER prompt and help text

Message ID 20230325060828.2662773-12-rppt@kernel.org
State New
Headers show
Series arch,mm: cleanup Kconfig entries for ARCH_FORCE_MAX_ORDER | expand

Commit Message

Mike Rapoport March 25, 2023, 6:08 a.m. UTC 
From: "Mike Rapoport (IBM)" <rppt@kernel.org>

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.

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
---
 arch/sh/mm/Kconfig | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 40271090bd7d..238b2772751e 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -19,7 +19,7 @@  config PAGE_OFFSET
 	default "0x00000000"
 
 config ARCH_FORCE_MAX_ORDER
-	int "Maximum zone order"
+	int "Order of maximal physically contiguous allocations"
 	range 8 63 if PAGE_SIZE_16KB
 	default "8" if PAGE_SIZE_16KB
 	range 6 63 if PAGE_SIZE_64KB
@@ -28,16 +28,18 @@  config ARCH_FORCE_MAX_ORDER
 	default "13" if !MMU
 	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.
 
 	  The page size is not necessarily 4KB. Keep this in mind when
 	  choosing a value for this option.
 
+	  Don't change if unsure.
+
 config MEMORY_START
 	hex "Physical memory start address"
 	default "0x08000000"