f2fs: convert f2fs_clear_page_cache_dirty_tag to use a folio

Removes uses of page_mapping() and page_index().

Link: https://lkml.kernel.org/r/20240423225552.4113447-3-willy@infradead.orgSigned-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Eric Biggers <ebiggers@google.com>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

fs/f2fs/data.c

@@ -4082,11 +4082,12 @@ const struct address_space_operations f2fs_dblock_aops = {
 
 void f2fs_clear_page_cache_dirty_tag(struct page *page)
 {
-	struct address_space *mapping = page_mapping(page);
+	struct folio *folio = page_folio(page);
+	struct address_space *mapping = folio->mapping;
 	unsigned long flags;
 
 	xa_lock_irqsave(&mapping->i_pages, flags);
-	__xa_clear_mark(&mapping->i_pages, page_index(page),
+	__xa_clear_mark(&mapping->i_pages, folio->index,
 						PAGECACHE_TAG_DIRTY);
 	xa_unlock_irqrestore(&mapping->i_pages, flags);
 }