1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * mm/zswapd_internal.h 4 * 5 * Copyright (c) 2020-2022 Huawei Technologies Co., Ltd. 6 */ 7 8 #ifndef _ZSWAPD_INTERNAL_H 9 #define _ZSWAPD_INTERNAL_H 10 11 enum zswapd_pressure_level { 12 LEVEL_LOW = 0, 13 LEVEL_MEDIUM, 14 LEVEL_CRITICAL, 15 LEVEL_COUNT 16 }; 17 18 enum zswapd_eswap_policy { 19 CHECK_BUFFER_ONLY = 0, 20 CHECK_BUFFER_ZRAMRATIO_BOTH 21 }; 22 23 void zswapd_pressure_report(enum zswapd_pressure_level level); 24 inline unsigned int get_zram_wm_ratio(void); 25 inline unsigned int get_compress_ratio(void); 26 inline unsigned int get_avail_buffers(void); 27 inline unsigned int get_min_avail_buffers(void); 28 inline unsigned int get_high_avail_buffers(void); 29 inline unsigned int get_zswapd_max_reclaim_size(void); 30 inline unsigned int get_inactive_file_ratio(void); 31 inline unsigned int get_active_file_ratio(void); 32 inline unsigned long long get_area_anon_refault_threshold(void); 33 inline unsigned long long get_anon_refault_snapshot_min_interval(void); 34 inline unsigned long long get_empty_round_skip_interval(void); 35 inline unsigned long long get_max_skip_interval(void); 36 inline unsigned long long get_empty_round_check_threshold(void); 37 inline unsigned long long get_zram_critical_threshold(void); 38 u64 memcg_data_size(struct mem_cgroup *memcg, int type); 39 u64 swapin_memcg(struct mem_cgroup *memcg, u64 req_size); 40 41 #endif /* MM_ZSWAPD_INTERNAL_H */ 42