The patch titled
Subject: mm/page_alloc: put __free_pages_core() in __meminit section
has been added to the -mm mm-unstable branch. Its filename is
mm-page_alloc-put-__free_pages_core-in-__meminit-section.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_alloc-put-__free_pages_core-in-__meminit-section.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Wei Yang <richard.weiyang@xxxxxxxxx>
Subject: mm/page_alloc: put __free_pages_core() in __meminit section
Date: Sat, 6 Jul 2024 06:16:15 +0000
Function __free_pages_core() is only used in bootmem init and hot-add
memory init path. Let's put it in __meminit section.
Link: https://lkml.kernel.org/r/20240706061615.30322-1-richard.weiyang@xxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory_hotplug.c | 3 ++-
mm/page_alloc.c | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
--- a/mm/memory_hotplug.c~mm-page_alloc-put-__free_pages_core-in-__meminit-section
+++ a/mm/memory_hotplug.c
@@ -628,7 +628,8 @@ int restore_online_page_callback(online_
}
EXPORT_SYMBOL_GPL(restore_online_page_callback);
-void generic_online_page(struct page *page, unsigned int order)
+/* we are OK calling __meminit stuff here - we have CONFIG_MEMORY_HOTPLUG */
+void __ref generic_online_page(struct page *page, unsigned int order)
{
__free_pages_core(page, order, MEMINIT_HOTPLUG);
}
--- a/mm/page_alloc.c~mm-page_alloc-put-__free_pages_core-in-__meminit-section
+++ a/mm/page_alloc.c
@@ -1219,7 +1219,7 @@ static void __free_pages_ok(struct page
__count_vm_events(PGFREE, 1 << order);
}
-void __free_pages_core(struct page *page, unsigned int order,
+void __meminit __free_pages_core(struct page *page, unsigned int order,
enum meminit_context context)
{
unsigned int nr_pages = 1 << order;
_
Patches currently in -mm which might be from richard.weiyang@xxxxxxxxx are
kernel-forkc-get-totalram_pages-from-memblock-to-calculate-max_threads.patch
kernel-forkc-put-set_max_threads-task_struct_whitelist-in-__init-section.patch
mm-page_alloc-remove-prefetchw-on-freeing-page-to-buddy-system.patch
mm-page_alloc-put-__free_pages_core-in-__meminit-section.patch
