On Wed, Dec 28, 2022 at 07:34:08PM +0800, Kefeng Wang wrote:
> +static inline struct page *damon_get_page(unsigned long pfn)
> +{
> + struct folio *folio = damon_get_folio(pfn);
> +
> + /* when folio is NULL, return &(0->page) mean return NULL */
> + return &folio->page;
I really don't think this comment is needed. This is the standard idiom
for converting from a folio to its head page.
