/* SPDX-License-Identifier: GPL-2.0 */

/* Extracted unchanged from Linux v6.18, include/linux/mmzone.h:669-698.
 * Full struct declaration; surrounding kernel context is required.
 * Source: https://github.com/torvalds/linux/blob/v6.18/include/linux/mmzone.h#L669
 * License text: GPL-2.0.txt (in this directory).
 */
struct lruvec {
	struct list_head		lists[NR_LRU_LISTS];
	/* per lruvec lru_lock for memcg */
	spinlock_t			lru_lock;
	/*
	 * These track the cost of reclaiming one LRU - file or anon -
	 * over the other. As the observed cost of reclaiming one LRU
	 * increases, the reclaim scan balance tips toward the other.
	 */
	unsigned long			anon_cost;
	unsigned long			file_cost;
	/* Non-resident age, driven by LRU movement */
	atomic_long_t			nonresident_age;
	/* Refaults at the time of last reclaim cycle */
	unsigned long			refaults[ANON_AND_FILE];
	/* Various lruvec state flags (enum lruvec_flags) */
	unsigned long			flags;
#ifdef CONFIG_LRU_GEN
	/* evictable pages divided into generations */
	struct lru_gen_folio		lrugen;
#ifdef CONFIG_LRU_GEN_WALKS_MMU
	/* to concurrently iterate lru_gen_mm_list */
	struct lru_gen_mm_state		mm_state;
#endif
#endif /* CONFIG_LRU_GEN */
#ifdef CONFIG_MEMCG
	struct pglist_data *pgdat;
#endif
	struct zswap_lruvec_state zswap_lruvec_state;
};