fs: nfs: fix filler function type

Bug: 67506682
Change-Id: I04d4b1b9ab0720a4f342d6617dd132de8654b94c
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index defc923..67b8000 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -346,7 +346,7 @@
 };
 
 static int
-readpage_async_filler(void *data, struct page *page)
+readpage_async_filler(struct file *data, struct page *page)
 {
 	struct nfs_readdesc *desc = (struct nfs_readdesc *)data;
 	struct nfs_page *new;