Re: [PATCH 01/14] mm/lru: move pgdat lru_lock into lruvec

[Matthew Wilcox]

On Tue, Aug 20, 2019 at 05:48:24PM +0800, Alex Shi wrote:
> +++ b/include/linux/mmzone.h
> @@ -295,6 +295,9 @@ struct zone_reclaim_stat {
>  
>  struct lruvec {
>  	struct list_head		lists[NR_LRU_LISTS];
> +	/* move lru_lock to per lruvec for memcg */
> +	spinlock_t			lru_lock;

This comment makes no sense outside the context of this patch.