mm: Convert delete_from_swap_cache to XArray

Both callers of __delete_from_swap_cache have the swp_entry_t already,
so pass that in to make constructing the XA_STATE easier.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c7ce2c1..80f731c 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -923,7 +923,7 @@
 	if (PageSwapCache(page)) {
 		swp_entry_t swap = { .val = page_private(page) };
 		mem_cgroup_swapout(page, swap);
-		__delete_from_swap_cache(page);
+		__delete_from_swap_cache(page, swap);
 		xa_unlock_irqrestore(&mapping->i_pages, flags);
 		put_swap_page(page, swap);
 	} else {