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
34 	struct extent_tree_info *eti = &sbi->extent_tree[type];  in __count_extent_cache()
43 	struct f2fs_sb_info *sbi;  in f2fs_shrink_count()  local
50 		sbi = list_entry(p, struct f2fs_sb_info, s_list);  in f2fs_shrink_count()
53 		if (!mutex_trylock(&sbi->umount_mutex)) {  in f2fs_shrink_count()
60 		count += __count_extent_cache(sbi, EX_READ);  in f2fs_shrink_count()
63 		count += __count_extent_cache(sbi, EX_BLOCK_AGE);  in f2fs_shrink_count()
66 		count += __count_nat_entries(sbi);  in f2fs_shrink_count()
69 		count += __count_free_nids(sbi);  in f2fs_shrink_count()
73 		mutex_unlock(&sbi->umount_mutex);  in f2fs_shrink_count()
83 	struct f2fs_sb_info *sbi;  in f2fs_shrink_scan()  local
94 		sbi = list_entry(p, struct f2fs_sb_info, s_list);  in f2fs_shrink_scan()
96 		if (sbi->shrinker_run_no == run_no)  in f2fs_shrink_scan()
100 		if (!mutex_trylock(&sbi->umount_mutex)) {  in f2fs_shrink_scan()
106 		sbi->shrinker_run_no = run_no;  in f2fs_shrink_scan()
109 		freed += f2fs_shrink_age_extent_tree(sbi, nr >> 2);  in f2fs_shrink_scan()
112 		freed += f2fs_shrink_read_extent_tree(sbi, nr >> 2);  in f2fs_shrink_scan()
116 			freed += f2fs_try_to_free_nats(sbi, nr - freed);  in f2fs_shrink_scan()
120 			freed += f2fs_try_to_free_nids(sbi, nr - freed);  in f2fs_shrink_scan()
124 		list_move_tail(&sbi->s_list, &f2fs_list);  in f2fs_shrink_scan()
125 		mutex_unlock(&sbi->umount_mutex);  in f2fs_shrink_scan()
133 void f2fs_join_shrinker(struct f2fs_sb_info *sbi)  in f2fs_join_shrinker()  argument
136 	list_add_tail(&sbi->s_list, &f2fs_list);  in f2fs_join_shrinker()
140 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi)  in f2fs_leave_shrinker()  argument
142 	f2fs_shrink_read_extent_tree(sbi, __count_extent_cache(sbi, EX_READ));  in f2fs_leave_shrinker()
143 	f2fs_shrink_age_extent_tree(sbi,  in f2fs_leave_shrinker()
144 				__count_extent_cache(sbi, EX_BLOCK_AGE));  in f2fs_leave_shrinker()
147 	list_del_init(&sbi->s_list);  in f2fs_leave_shrinker()