The quilt patch titled Subject: mm/page_alloc: drop the unnecessary pfn_valid() for start pfn has been removed from the -mm tree. Its filename was mm-page_alloc-drop-the-unnecessary-pfn_valid-for-start-pfn.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: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> Subject: mm/page_alloc: drop the unnecessary pfn_valid() for start pfn Date: Mon, 24 Apr 2023 21:45:39 +0800 __pageblock_pfn_to_page() currently performs both pfn_valid check and pfn_to_online_page(). The former one is redundant because the latter is a stronger check. Drop pfn_valid(). Link: https://lkml.kernel.org/r/c3868b58c6714c09a43440d7d02c7b4eed6e03f6.1682342634.git.baolin.wang@xxxxxxxxxxxxxxxxx Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> Reviewed-by: "Huang, Ying" <ying.huang@xxxxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxxx> Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> Cc: Mike Rapoport (IBM) <rppt@xxxxxxxxxx> Cc: Vlastimil Babka <vbabka@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/page_alloc.c~mm-page_alloc-drop-the-unnecessary-pfn_valid-for-start-pfn +++ a/mm/page_alloc.c @@ -1521,7 +1521,7 @@ struct page *__pageblock_pfn_to_page(uns /* end_pfn is one past the range we are checking */ end_pfn--; - if (!pfn_valid(start_pfn) || !pfn_valid(end_pfn)) + if (!pfn_valid(end_pfn)) return NULL; start_page = pfn_to_online_page(start_pfn); _ Patches currently in -mm which might be from baolin.wang@xxxxxxxxxxxxxxxxx are