[PATCH 1/6] afs: Fix afs_launder_page() to set correct start file position

[Matthew Wilcox]

On Tue, Aug 24, 2021 at 02:24:47PM +0100, David Howells wrote:
> +++ b/fs/afs/write.c
> @@ -950,8 +950,8 @@ int afs_launder_page(struct page *page)
>  		iov_iter_bvec(&iter, WRITE, bv, 1, bv[0].bv_len);
>  
>  		trace_afs_page_dirty(vnode, tracepoint_string("launder"), page);
> -		ret = afs_store_data(vnode, &iter, (loff_t)page->index * PAGE_SIZE,
> -				     true);
> +		ret = afs_store_data(vnode, &iter,
> +				     (loff_t)page->index * PAGE_SIZE + f, true);

This could be page_offset(page), which reads better to me:

		ret = afs_store_data(vnode, &iter, page_offset(page) + f, true);