linux-5.15/lru_list の履歴(No.1)

• 履歴一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• linux-5.15/lru_list へ行く。
  • 1 (2025-09-11 (木) 20:47:04)

参照元†

• linux-5.15/is_active_lru()
• linux-5.15/is_file_lru()
• linux-5.15/isolate_lru_pages()
• linux-5.15/shrink_active_list()
• linux-5.15/shrink_inactive_list()
• linux-5.15/shrink_list()
• linux-5.15/shrink_lruvec()

説明†

• パス: linux-5.15/include/linux/mmzone.h

• LRU listの種類。
  • 0: LRU_INACTIVE_ANON = LRU_BASE = 0
  • 1: LRU_ACTIVE_ANON = LRU_BASE + LRU_ACTIVE = 0 + 1
  • 2: LRU_INACTIVE_FILE = LRU_BASE + LRU_FILE = 0 + 2
  • 3: LRU_ACTIVE_FILE = LRU_BASE + LRU_FILE + LRU_ACTIVE = 0 + 1 + 2
  • 4: LRU_UNEVICTABLE

参考†

実装†

/*
 * We do arithmetic on the LRU lists in various places in the code,
 * so it is important to keep the active lists LRU_ACTIVE higher in
 * the array than the corresponding inactive lists, and to keep
 * the *_FILE lists LRU_FILE higher than the corresponding _ANON lists.
 *
 * This has to be kept in sync with the statistics in zone_stat_item
 * above and the descriptions in vmstat_text in mm/vmstat.c
 */
#define LRU_BASE 0
#define LRU_ACTIVE 1
#define LRU_FILE 2

enum lru_list {
	LRU_INACTIVE_ANON = LRU_BASE,
	LRU_ACTIVE_ANON = LRU_BASE + LRU_ACTIVE,
	LRU_INACTIVE_FILE = LRU_BASE + LRU_FILE,
	LRU_ACTIVE_FILE = LRU_BASE + LRU_FILE + LRU_ACTIVE,
	LRU_UNEVICTABLE,
	NR_LRU_LISTS
};

コメント†