Re: [PATCH v3] mm: memcg: add THP swap out info for anonymous reclaim

[Johannes Weiner <hannes@xxxxxxxxxxx>]

On Thu, Sep 14, 2023 at 12:49:37AM +0800, Vern Hao wrote:
> @@ -296,6 +295,7 @@ static void swap_writepage_fs(struct page *page, struct writeback_control *wbc)
>  	struct file *swap_file = sis->swap_file;
>  	loff_t pos = page_file_offset(page);
>  
> +	count_swpout_vm_event(page_folio(sio->bvec[p].bv_page));

Argh, this should be

	count_swpout_vm_event(page_folio(page));