19 static unsigned long __count_nat_entries(struct f2fs_sb_info *sbi)  in __count_nat_entries()  argument
21 	return NM_I(sbi)->nat_cnt[RECLAIMABLE_NAT];  in __count_nat_entries()
24 static unsigned long __count_free_nids(struct f2fs_sb_info *sbi)  in __count_free_nids()  argument
26 	long count = NM_I(sbi)->nid_cnt[FREE_NID] - MAX_FREE_NIDS;  in __count_free_nids()
31 static unsigned long __count_extent_cache(struct f2fs_sb_info *sbi)  in __count_extent_cache()  argument
33 	return atomic_read(&sbi->total_zombie_tree) +  in __count_extent_cache()
34 				atomic_read(&sbi->total_ext_node);  in __count_extent_cache()
40 	struct f2fs_sb_info *sbi;  in f2fs_shrink_count()  local
47 		sbi = list_entry(p, struct f2fs_sb_info, s_list);  in f2fs_shrink_count()
50 		if (!mutex_trylock(&sbi->umount_mutex)) {  in f2fs_shrink_count()
57 		count += __count_extent_cache(sbi);  in f2fs_shrink_count()
60 		count += __count_nat_entries(sbi);  in f2fs_shrink_count()
63 		count += __count_free_nids(sbi);  in f2fs_shrink_count()
67 		mutex_unlock(&sbi->umount_mutex);  in f2fs_shrink_count()
77 	struct f2fs_sb_info *sbi;  in f2fs_shrink_scan()  local
88 		sbi = list_entry(p, struct f2fs_sb_info, s_list);  in f2fs_shrink_scan()
90 		if (sbi->shrinker_run_no == run_no)  in f2fs_shrink_scan()
94 		if (!mutex_trylock(&sbi->umount_mutex)) {  in f2fs_shrink_scan()
100 		sbi->shrinker_run_no = run_no;  in f2fs_shrink_scan()
103 		freed += f2fs_shrink_extent_tree(sbi, nr >> 1);  in f2fs_shrink_scan()
107 			freed += f2fs_try_to_free_nats(sbi, nr - freed);  in f2fs_shrink_scan()
111 			freed += f2fs_try_to_free_nids(sbi, nr - freed);  in f2fs_shrink_scan()
115 		list_move_tail(&sbi->s_list, &f2fs_list);  in f2fs_shrink_scan()
116 		mutex_unlock(&sbi->umount_mutex);  in f2fs_shrink_scan()
124 void f2fs_join_shrinker(struct f2fs_sb_info *sbi)  in f2fs_join_shrinker()  argument
127 	list_add_tail(&sbi->s_list, &f2fs_list);  in f2fs_join_shrinker()
131 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi)  in f2fs_leave_shrinker()  argument
133 	f2fs_shrink_extent_tree(sbi, __count_extent_cache(sbi));  in f2fs_leave_shrinker()
136 	list_del_init(&sbi->s_list);  in f2fs_leave_shrinker()