56  * clean znodes which younger then @age. Returns number of freed znodes.
83 		int freed;  in shrink_tnc()  local
116 			freed = ubifs_destroy_tnc_subtree(c, znode);  in shrink_tnc()
117 			atomic_long_sub(freed, &ubifs_clean_zn_cnt);  in shrink_tnc()
118 			atomic_long_sub(freed, &c->clean_zn_cnt);  in shrink_tnc()
119 			total_freed += freed;  in shrink_tnc()
141  * znodes which are older than @age, until at least @nr znodes are freed.
142  * Returns the number of freed znodes.
149 	int freed = 0;  in shrink_tnc_trees()  local
187 		freed += shrink_tnc(c, nr, age, contention);  in shrink_tnc_trees()
198 		if (freed >= nr)  in shrink_tnc_trees()
202 	return freed;  in shrink_tnc_trees()
210  * will soon be freed or become freeable. If there are no dirty znodes, returns
284 	unsigned long freed;  in ubifs_shrink_scan()  local
299 	freed = shrink_tnc_trees(nr, OLD_ZNODE_AGE, &contention);  in ubifs_shrink_scan()
300 	if (freed >= nr)  in ubifs_shrink_scan()
304 	freed += shrink_tnc_trees(nr - freed, YOUNG_ZNODE_AGE, &contention);  in ubifs_shrink_scan()
305 	if (freed >= nr)  in ubifs_shrink_scan()
309 	freed += shrink_tnc_trees(nr - freed, 0, &contention);  in ubifs_shrink_scan()
311 	if (!freed && contention) {  in ubifs_shrink_scan()
312 		dbg_tnc("freed nothing, but contention");  in ubifs_shrink_scan()
317 	dbg_tnc("%lu znodes were freed, requested %lu", freed, nr);  in ubifs_shrink_scan()
318 	return freed;  in ubifs_shrink_scan()