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mm: drop stale MAX_ORDER references

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The treewide rename in commit 5e0a760b44 ("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 <xiqi2@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Konstantin Taranov <kotaranov@microsoft.com>
Cc: Long Li <longli@microsoft.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
This commit is contained in:
Qi Xi 2026-08-19 16:20:52 +08:00 committed by Andrew Morton
parent 5121682509
commit dc954a916d
3 changed files with 7 additions and 7 deletions
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4
include/net/mana/mana.h
View File

@ -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

2
mm/page_alloc.c
View File

@ -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);

8
scripts/gdb/linux/mm.py
View File

@ -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