[PATCH RESEND] mm, swap: delete meaningless __add_to_swap_cache() declaration

[linmiaohe]

From: Miaohe Lin <linmiaohe@xxxxxxxxxx>

Since commit 8d93b41c09d1 ("mm: Convert add_to_swap_cache to XArray"),
__add_to_swap_cache and add_to_swap_cache are combined into one function.
There is no __add_to_swap_cache() anymore.

CC: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Reviewed-by: "Huang, Ying" <ying.huang@xxxxxxxxx>
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 include/linux/swap.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/linux/swap.h b/include/linux/swap.h
index e1bbf7a16b27..d70e6017d835 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -408,7 +408,6 @@ extern unsigned long total_swapcache_pages(void);
 extern void show_swap_cache_info(void);
 extern int add_to_swap(struct page *page);
 extern int add_to_swap_cache(struct page *, swp_entry_t, gfp_t);
-extern int __add_to_swap_cache(struct page *page, swp_entry_t entry);
 extern void __delete_from_swap_cache(struct page *, swp_entry_t entry);
 extern void delete_from_swap_cache(struct page *);
 extern void free_page_and_swap_cache(struct page *);
-- 
2.19.1