From dc954a916d53b0adbebd1498684cd656ce7ade62 Mon Sep 17 00:00:00 2001 From: Qi Xi Date: Wed, 19 Aug 2026 16:20:52 +0800 Subject: [PATCH] mm: drop stale MAX_ORDER references 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. Link: https://lore.kernel.org/20260819082052.3338603-1-xiqi2@huawei.com Signed-off-by: Qi Xi Signed-off-by: Andrew Morton Reviewed-by: Zi Yan Cc: Jan Kiszka Cc: Johannes Weiner Cc: Kefeng Wang Cc: Kieran Bingham Cc: Konstantin Taranov Cc: Long Li Cc: Michal Hocko Cc: Nanyong Sun Cc: Suren Baghdasaryan Cc: Vlastimil Babka --- 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 83b7eff4646e..e8fda092be37 100644 --- a/include/net/mana/mana.h +++ b/include/net/mana/mana.h @@ -47,8 +47,8 @@ enum mana_priv_flag_bits { #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 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 12fac9084c48..ab385bc252cc 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7978,7 +7978,7 @@ 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