[PATCH] mm: drop stale MAX_ORDER references
From: Qi Xi <hidden>
Date: 2026-08-18 12:39:45
Also in:
linux-hyperv, linux-mm, linux-rdma, lkml
Subsystem:
gdb kernel debugging helper scripts, memory management, memory management - page allocator, networking [general], the rest · Maintainers:
Jan Kiszka, Kieran Bingham, Andrew Morton, Vlastimil Babka, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The treewide rename in commit 5e0a760b4441 ("mm, treewide: rename
MAX_ORDER to MAX_PAGE_ORDER") left a few spots still using the old
name:
- two comments in include/net/mana/mana.h and mm/page_alloc.c;
- the gdb helper scripts/gdb/linux/mm.py, where self.MAX_ORDER is
a local mirror of the kernel's MAX_ORDER define.
Rename the leftover instances to MAX_PAGE_ORDER so the tree is
consistent.
No functional changes.
Signed-off-by: Qi Xi <redacted>
---
include/net/mana/mana.h | 4 ++--
mm/page_alloc.c | 2 +-
scripts/gdb/linux/mm.py | 8 ++++----
3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h
index 04acb6791dbd..1d5bed71d6a7 100644
--- a/include/net/mana/mana.h
+++ b/include/net/mana/mana.h@@ -40,8 +40,8 @@ enum TRI_STATE { #define COMP_ENTRY_SIZE 64 /* This Max value for RX buffers is derived from __alloc_page()'s max page - * allocation calculation. It allows maximum 2^(MAX_ORDER -1) pages. RX buffer - * size beyond this value gets rejected by __alloc_page() call. + * allocation calculation. It allows maximum 2^(MAX_PAGE_ORDER -1) pages. RX + * buffer size beyond this value gets rejected by __alloc_page() call. */ #define MAX_RX_BUFFERS_PER_QUEUE 8192 #define DEF_RX_BUFFERS_PER_QUEUE 1024
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index ee902a468c2f..42b5b41432c5 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c@@ -7803,7 +7803,7 @@ static bool cond_accept_memory(struct zone *zone, unsigned int order, /* * Watermarks have not been initialized yet. * - * Accepting one MAX_ORDER page to ensure progress. + * Accepting one MAX_PAGE_ORDER page to ensure progress. */ if (!wmark) return try_to_accept_memory_one(zone);
diff --git a/scripts/gdb/linux/mm.py b/scripts/gdb/linux/mm.py
index dffadccbb01d..28d33624c38b 100644
--- a/scripts/gdb/linux/mm.py
+++ b/scripts/gdb/linux/mm.py@@ -56,7 +56,7 @@ class x86_page_ops(): self.MAX_PHYSMEM_BITS = 46 self.SECTION_SIZE_BITS = 27 - self.MAX_ORDER = 10 + self.MAX_PAGE_ORDER = 10 self.SECTIONS_SHIFT = self.MAX_PHYSMEM_BITS - self.SECTION_SIZE_BITS self.NR_MEM_SECTIONS = 1 << self.SECTIONS_SHIFT
@@ -233,11 +233,11 @@ class aarch64_page_ops(): self.SECTIONS_SHIFT = self.MAX_PHYSMEM_BITS - self.SECTION_SIZE_BITS if str(constants.LX_CONFIG_ARCH_FORCE_MAX_ORDER).isdigit(): - self.MAX_ORDER = constants.LX_CONFIG_ARCH_FORCE_MAX_ORDER + self.MAX_PAGE_ORDER = constants.LX_CONFIG_ARCH_FORCE_MAX_ORDER else: - self.MAX_ORDER = 10 + self.MAX_PAGE_ORDER = 10 - self.MAX_ORDER_NR_PAGES = 1 << (self.MAX_ORDER) + self.MAX_ORDER_NR_PAGES = 1 << (self.MAX_PAGE_ORDER) self.PFN_SECTION_SHIFT = self.SECTION_SIZE_BITS - self.PAGE_SHIFT self.NR_MEM_SECTIONS = 1 << self.SECTIONS_SHIFT self.PAGES_PER_SECTION = 1 << self.PFN_SECTION_SHIFT
--
2.33.0