Re: [PATCH 03/12] mm: abstract out wake_page_match() from wake_page_function()

[Matthew Wilcox]

On Tue, May 26, 2020 at 01:51:14PM -0600, Jens Axboe wrote:
> +++ b/include/linux/pagemap.h
> @@ -456,6 +456,43 @@ static inline pgoff_t linear_page_index(struct vm_area_struct *vma,
>  	return pgoff;
>  }
>  
> +/* This has the same layout as wait_bit_key - see fs/cachefiles/rdwr.c */
> +struct wait_page_key {
> +	struct page *page;
> +	int bit_nr;
> +	int page_match;
> +};

I know you only moved the struct, and the comment along with it, but now
that this struct is in pagemap.h, I think cachefiles should be updated
to use wait_page_key instead of wait_bit_key.  Dave?