[merged mm-stable] mm-mark-early-init-static-variables-with-__meminitdata.patch removed from -mm tree

[merged mm-stable] mm-mark-early-init-static-variables-with-__meminitdata.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm: mark early-init static variables with __meminitdata
has been removed from the -mm tree.  Its filename was
     mm-mark-early-init-static-variables-with-__meminitdata.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Kaitao Cheng <chengkaitao@kylinos.cn>
Subject: mm: mark early-init static variables with __meminitdata
Date: Sat, 21 Mar 2026 20:08:47 +0800

Static variables defined inside __meminit functions should also be marked
with __meminitdata, so that their storage is placed in the .init.data
section and reclaimed with free_initmem(), thereby reducing permanent .bss
memory usage when CONFIG_MEMORY_HOTPLUG is disabled.

Link: https://lkml.kernel.org/r/20260321120847.8159-1-pilgrimtao@gmail.com
Signed-off-by: Kaitao Cheng <chengkaitao@kylinos.cn>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/mm_init.c        |    2 +-
 mm/sparse-vmemmap.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/mm/mm_init.c~mm-mark-early-init-static-variables-with-__meminitdata
+++ a/mm/mm_init.c
@@ -812,7 +812,7 @@ void __meminit reserve_bootmem_region(ph
 static bool __meminit
 overlap_memmap_init(unsigned long zone, unsigned long *pfn)
 {
-	static struct memblock_region *r;
+	static struct memblock_region *r __meminitdata;
 
 	if (mirrored_kernelcore && zone == ZONE_MOVABLE) {
 		if (!r || *pfn >= memblock_region_memory_end_pfn(r)) {
--- a/mm/sparse-vmemmap.c~mm-mark-early-init-static-variables-with-__meminitdata
+++ a/mm/sparse-vmemmap.c
@@ -62,7 +62,7 @@ void * __meminit vmemmap_alloc_block(uns
 	if (slab_is_available()) {
 		gfp_t gfp_mask = GFP_KERNEL|__GFP_RETRY_MAYFAIL|__GFP_NOWARN;
 		int order = get_order(size);
-		static bool warned;
+		static bool warned __meminitdata;
 		struct page *page;
 
 		page = alloc_pages_node(node, gfp_mask, order);
_

Patches currently in -mm which might be from chengkaitao@kylinos.cn are