mm/memory-failure: use folio functions throughout collect_procs()

Saves a couple of calls to compound_head().

Link: https://lkml.kernel.org/r/20240412193510.2356957-11-willy@infradead.orgSigned-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jane Chu <jane.chu@oracle.com>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/memory-failure.c

@@ -728,9 +728,9 @@ static void collect_procs(struct folio *folio, struct page *page,
 {
 	if (!folio->mapping)
 		return;
-	if (unlikely(PageKsm(page)))
+	if (unlikely(folio_test_ksm(folio)))
 		collect_procs_ksm(page, tokill, force_early);
-	else if (PageAnon(page))
+	else if (folio_test_anon(folio))
 		collect_procs_anon(folio, page, tokill, force_early);
 	else
 		collect_procs_file(folio, page, tokill, force_early);