[PATCH v1 3/6] mm:swap: remove end_swap_bio_write argument

[Minchan Kim]

Every caller of __swap_writepage uses end_swap_bio_write as
end_write_func argument so the argument is pointless.
Remove it.

Signed-off-by: Minchan Kim <minc...@kernel.org>
---
 include/linux/swap.h | 3 +--
 mm/page_io.c         | 7 +++----
 mm/zswap.c           | 2 +-
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/include/linux/swap.h b/include/linux/swap.h
index 76f1632eea5a..ae3da979a7b7 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -336,8 +336,7 @@ extern void kswapd_stop(int nid);
 extern int swap_readpage(struct page *page, bool do_poll);
 extern int swap_writepage(struct page *page, struct writeback_control *wbc);
 extern void end_swap_bio_write(struct bio *bio);
-extern int __swap_writepage(struct page *page, struct writeback_control *wbc,
-       bio_end_io_t end_write_func);
+extern int __swap_writepage(struct page *page, struct writeback_control *wbc);
 extern int swap_set_page_dirty(struct page *page);
 
 int add_swap_extent(struct swap_info_struct *sis, unsigned long start_page,
diff --git a/mm/page_io.c b/mm/page_io.c
index 20139b90125a..3502a97f7c48 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -254,7 +254,7 @@ int swap_writepage(struct page *page, struct 
writeback_control *wbc)
                end_page_writeback(page);
                goto out;
        }
-       ret = __swap_writepage(page, wbc, end_swap_bio_write);
+       ret = __swap_writepage(page, wbc);
 out:
        return ret;
 }
@@ -273,8 +273,7 @@ static inline void count_swpout_vm_event(struct page *page)
        count_vm_events(PSWPOUT, hpage_nr_pages(page));
 }
 
-int __swap_writepage(struct page *page, struct writeback_control *wbc,
-               bio_end_io_t end_write_func)
+int __swap_writepage(struct page *page, struct writeback_control *wbc)
 {
        struct bio *bio;
        int ret;
@@ -329,7 +328,7 @@ int __swap_writepage(struct page *page, struct 
writeback_control *wbc,
        }
 
        ret = 0;
-       bio = get_swap_bio(GFP_NOIO, page, end_write_func);
+       bio = get_swap_bio(GFP_NOIO, page, end_swap_bio_write);
        if (bio == NULL) {
                set_page_dirty(page);
                unlock_page(page);
diff --git a/mm/zswap.c b/mm/zswap.c
index d39581a076c3..38db258515b5 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -900,7 +900,7 @@ static int zswap_writeback_entry(struct zpool *pool, 
unsigned long handle)
        SetPageReclaim(page);
 
        /* start writeback */
-       __swap_writepage(page, &wbc, end_swap_bio_write);
+       __swap_writepage(page, &wbc);
        put_page(page);
        zswap_written_back_pages++;
 
-- 
2.7.4