mm: remove file argument from swap_readpage()
The file argument resulted from address_space's readpage long time ago.
We don't use it any more. Let's remove unnecessary argement.
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/swap.h b/include/linux/swap.h
index fed5e8e..0cedf31 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -256,7 +256,7 @@
#ifdef CONFIG_SWAP
/* linux/mm/page_io.c */
-extern int swap_readpage(struct file *, struct page *);
+extern int swap_readpage(struct page *);
extern int swap_writepage(struct page *page, struct writeback_control *wbc);
extern void end_swap_bio_read(struct bio *bio, int err);
diff --git a/mm/page_io.c b/mm/page_io.c
index 3023c47..c6f3e50 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -120,7 +120,7 @@
return ret;
}
-int swap_readpage(struct file *file, struct page *page)
+int swap_readpage(struct page *page)
{
struct bio *bio;
int ret = 0;
diff --git a/mm/swap_state.c b/mm/swap_state.c
index b62e7f5..42cd38e 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -313,7 +313,7 @@
* Initiate read into locked page and return.
*/
lru_cache_add_anon(new_page);
- swap_readpage(NULL, new_page);
+ swap_readpage(new_page);
return new_page;
}
ClearPageSwapBacked(new_page);