[PATCH] splice: mark the io page as accessed

We should do that, since we do the LRU manipulation ourselves now. Suggested
by Nick Piggin.
Signed-off-by: NJens Axboe <axboe@suse.de>

fs/splice.c

@@ -501,6 +501,7 @@ static int pipe_to_file(struct pipe_inode_info *info, struct pipe_buffer *buf,
 	} else if (ret)
 		goto out;
 
+	mark_page_accessed(page);
 	balance_dirty_pages_ratelimited(mapping);
 out:
 	if (!(buf->flags & PIPE_BUF_FLAG_STOLEN)) {