19 static unsigned long __count_nat_entries(struct f2fs_sb_info *sbi)  in __count_nat_entries()  argument
21 	long count = NM_I(sbi)->nat_cnt - NM_I(sbi)->dirty_nat_cnt;  in __count_nat_entries()
26 static unsigned long __count_free_nids(struct f2fs_sb_info *sbi)  in __count_free_nids()  argument
28 	long count = NM_I(sbi)->nid_cnt[FREE_NID] - MAX_FREE_NIDS;  in __count_free_nids()
33 static unsigned long __count_extent_cache(struct f2fs_sb_info *sbi)  in __count_extent_cache()  argument
35 	return atomic_read(&sbi->total_zombie_tree) +  in __count_extent_cache()
36 				atomic_read(&sbi->total_ext_node);  in __count_extent_cache()
42 	struct f2fs_sb_info *sbi;  in f2fs_shrink_count()  local
49 		sbi = list_entry(p, struct f2fs_sb_info, s_list);  in f2fs_shrink_count()
52 		if (!mutex_trylock(&sbi->umount_mutex)) {  in f2fs_shrink_count()
59 		count += __count_extent_cache(sbi);  in f2fs_shrink_count()
62 		count += __count_nat_entries(sbi);  in f2fs_shrink_count()
65 		count += __count_free_nids(sbi);  in f2fs_shrink_count()
69 		mutex_unlock(&sbi->umount_mutex);  in f2fs_shrink_count()
79 	struct f2fs_sb_info *sbi;  in f2fs_shrink_scan()  local
90 		sbi = list_entry(p, struct f2fs_sb_info, s_list);  in f2fs_shrink_scan()
92 		if (sbi->shrinker_run_no == run_no)  in f2fs_shrink_scan()
96 		if (!mutex_trylock(&sbi->umount_mutex)) {  in f2fs_shrink_scan()
102 		sbi->shrinker_run_no = run_no;  in f2fs_shrink_scan()
105 		freed += f2fs_shrink_extent_tree(sbi, nr >> 1);  in f2fs_shrink_scan()
109 			freed += f2fs_try_to_free_nats(sbi, nr - freed);  in f2fs_shrink_scan()
113 			freed += f2fs_try_to_free_nids(sbi, nr - freed);  in f2fs_shrink_scan()
117 		list_move_tail(&sbi->s_list, &f2fs_list);  in f2fs_shrink_scan()
118 		mutex_unlock(&sbi->umount_mutex);  in f2fs_shrink_scan()
126 void f2fs_join_shrinker(struct f2fs_sb_info *sbi)  in f2fs_join_shrinker()  argument
129 	list_add_tail(&sbi->s_list, &f2fs_list);  in f2fs_join_shrinker()
133 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi)  in f2fs_leave_shrinker()  argument
135 	f2fs_shrink_extent_tree(sbi, __count_extent_cache(sbi));  in f2fs_leave_shrinker()
138 	list_del_init(&sbi->s_list);  in f2fs_leave_shrinker()