mm/hugetlb_vmemmap: remove bootmem_info leftovers

We never set CONFIG_HAVE_BOOTMEM_INFO_NODE, so we can just switch to
free_reserved_page() and drop the register_page_bootmem_memmap() call.

Link: https://lore.kernel.org/20260716-bootmem_info_part2-v2-8-4afc76c73d61@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "Borislav Petkov (AMD)" <bp@alien8.de>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Brendan Jackman <brendan.jackman@linux.dev>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/hugetlb_vmemmap.c

@@ -12,7 +12,6 @@
 
 #include <linux/pgtable.h>
 #include <linux/moduleparam.h>
-#include <linux/bootmem_info.h>
 #include <linux/mmdebug.h>
 #include <linux/pagewalk.h>
 #include <linux/pgalloc.h>
@@ -177,13 +176,13 @@ static int vmemmap_remap_range(unsigned long start, unsigned long end,
  * Free a vmemmap page. A vmemmap page can be allocated from the memblock
  * allocator or buddy allocator. If the PG_reserved flag is set, it means
  * that it allocated from the memblock allocator, just free it via the
- * free_bootmem_page(). Otherwise, use __free_page().
+ * free_reserved_page(). Otherwise, use __free_page().
  */
 static inline void free_vmemmap_page(struct page *page)
 {
 	if (PageReserved(page)) {
 		memmap_boot_pages_add(-1);
-		free_bootmem_page(page);
+		free_reserved_page(page);
 	} else {
 		memmap_pages_add(-1);
 		__free_page(page);
@@ -641,9 +640,6 @@ static void __hugetlb_vmemmap_optimize_folios(struct hstate *h,
 			epfn = spfn + hugetlb_vmemmap_size(h);
 			vmemmap_wrprotect_hvo(spfn, epfn, folio_nid(folio),
 					HUGETLB_VMEMMAP_RESERVE_SIZE);
-			register_page_bootmem_memmap(pfn_to_section_nr(folio_pfn(folio)),
-					&folio->page,
-					HUGETLB_VMEMMAP_RESERVE_PAGES);
 			continue;
 		}