mm/bootmem_info: drop initialization of page->lru

In the past, we used to store the type in page->lru.next, introduced by
commit 5f24ce5fd3 ("thp: remove PG_buddy"). The location changed over
the years; ever since commit 0386aaa6e9 ("bootmem: stop using
page->index"), we store it alongside the info in page->private.

Consequently, there is no need to reset page->lru anymore.

Link: https://lore.kernel.org/20260511-bootmem_info_prep-v1-2-3fb0be6fc688@kernel.org
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
Acked-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
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: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/bootmem_info.c

@@ -34,7 +34,6 @@ void put_page_bootmem(struct page *page)
 	if (page_ref_dec_return(page) == 1) {
 		ClearPagePrivate(page);
 		set_page_private(page, 0);
-		INIT_LIST_HEAD(&page->lru);
 		kmemleak_free_part_phys(PFN_PHYS(page_to_pfn(page)), PAGE_SIZE);
 		free_reserved_page(page);
 	}