Re: [PATCH 1/2] mm/zsmalloc: don't hold locks of all pages when free_zspage()

[Sergey Senozhatsky]

On (24/02/27 03:02), Chengming Zhou wrote:
> @@ -834,13 +841,12 @@ static void __free_zspage(struct zs_pool *pool, struct size_class *class,
>  		VM_BUG_ON_PAGE(!PageLocked(page), page);
>  		next = get_next_page(page);
>  		reset_page(page);

reset_page()->__ClearPageMovable()->PageMovable() expects page to be
locked.

> -		unlock_page(page);
>  		dec_zone_page_state(page, NR_ZSPAGES);
>  		put_page(page);
>  		page = next;
>  	} while (page != NULL);