113 static inline void *rht_obj(const struct rhashtable *ht,  in rht_obj()  argument
116 	return (char *)he - ht->p.head_offset;  in rht_obj()
125 static inline unsigned int rht_key_get_hash(struct rhashtable *ht,  in rht_key_get_hash()  argument
133 		hash = ht->p.hashfn(key, ht->key_len, hash_rnd);  in rht_key_get_hash()
144 		unsigned int key_len = ht->p.key_len;  in rht_key_get_hash()
156 	struct rhashtable *ht, const struct bucket_table *tbl,  in rht_key_hashfn()  argument
159 	unsigned int hash = rht_key_get_hash(ht, key, params, tbl->hash_rnd);  in rht_key_hashfn()
165 	struct rhashtable *ht, const struct bucket_table *tbl,  in rht_head_hashfn()  argument
168 	const char *ptr = rht_obj(ht, he);  in rht_head_hashfn()
172 							    ht->p.key_len,  in rht_head_hashfn()
174 	       rht_key_hashfn(ht, tbl, ptr + params.key_offset, params);  in rht_head_hashfn()
182 static inline bool rht_grow_above_75(const struct rhashtable *ht,  in rht_grow_above_75()  argument
186 	return atomic_read(&ht->nelems) > (tbl->size / 4 * 3) &&  in rht_grow_above_75()
187 	       (!ht->p.max_size || tbl->size < ht->p.max_size);  in rht_grow_above_75()
195 static inline bool rht_shrink_below_30(const struct rhashtable *ht,  in rht_shrink_below_30()  argument
199 	return atomic_read(&ht->nelems) < (tbl->size * 3 / 10) &&  in rht_shrink_below_30()
200 	       tbl->size > ht->p.min_size;  in rht_shrink_below_30()
208 static inline bool rht_grow_above_100(const struct rhashtable *ht,  in rht_grow_above_100()  argument
211 	return atomic_read(&ht->nelems) > tbl->size &&  in rht_grow_above_100()
212 		(!ht->p.max_size || tbl->size < ht->p.max_size);  in rht_grow_above_100()
220 static inline bool rht_grow_above_max(const struct rhashtable *ht,  in rht_grow_above_max()  argument
223 	return atomic_read(&ht->nelems) >= ht->max_elems;  in rht_grow_above_max()
227 int lockdep_rht_mutex_is_held(struct rhashtable *ht);
230 static inline int lockdep_rht_mutex_is_held(struct rhashtable *ht)  in lockdep_rht_mutex_is_held()  argument
242 void *rhashtable_insert_slow(struct rhashtable *ht, const void *key,
245 void rhashtable_walk_enter(struct rhashtable *ht,
259 void rhashtable_free_and_destroy(struct rhashtable *ht,
262 void rhashtable_destroy(struct rhashtable *ht);
268 struct rhash_lock_head **rht_bucket_nested_insert(struct rhashtable *ht,
272 #define rht_dereference(p, ht) \  argument
273 	rcu_dereference_protected(p, lockdep_rht_mutex_is_held(ht))
275 #define rht_dereference_rcu(p, ht) \  argument
276 	rcu_dereference_check(p, lockdep_rht_mutex_is_held(ht))
302 	struct rhashtable *ht, struct bucket_table *tbl, unsigned int hash)  in rht_bucket_insert()  argument
304 	return unlikely(tbl->nest) ? rht_bucket_nested_insert(ht, tbl, hash) :  in rht_bucket_insert()
581 	struct rhashtable *ht = arg->ht;  in rhashtable_compare()  local
584 	return memcmp(ptr + ht->p.key_offset, arg->key, ht->p.key_len);  in rhashtable_compare()
589 	struct rhashtable *ht, const void *key,  in __rhashtable_lookup()  argument
593 		.ht = ht,  in __rhashtable_lookup()
601 	tbl = rht_dereference_rcu(ht->tbl, ht);  in __rhashtable_lookup()
603 	hash = rht_key_hashfn(ht, tbl, key, params);  in __rhashtable_lookup()
608 			    params.obj_cmpfn(&arg, rht_obj(ht, he)) :  in __rhashtable_lookup()
609 			    rhashtable_compare(&arg, rht_obj(ht, he)))  in __rhashtable_lookup()
621 	tbl = rht_dereference_rcu(tbl->future_tbl, ht);  in __rhashtable_lookup()
642 	struct rhashtable *ht, const void *key,  in rhashtable_lookup()  argument
645 	struct rhash_head *he = __rhashtable_lookup(ht, key, params);  in rhashtable_lookup()
647 	return he ? rht_obj(ht, he) : NULL;  in rhashtable_lookup()
665 	struct rhashtable *ht, const void *key,  in rhashtable_lookup_fast()  argument
671 	obj = rhashtable_lookup(ht, key, params);  in rhashtable_lookup_fast()
695 	struct rhash_head *he = __rhashtable_lookup(&hlt->ht, key, params);  in rhltable_lookup()
705 	struct rhashtable *ht, const void *key, struct rhash_head *obj,  in __rhashtable_insert_fast()  argument
709 		.ht = ht,  in __rhashtable_insert_fast()
722 	tbl = rht_dereference_rcu(ht->tbl, ht);  in __rhashtable_insert_fast()
723 	hash = rht_head_hashfn(ht, tbl, obj, params);  in __rhashtable_insert_fast()
725 	bkt = rht_bucket_insert(ht, tbl, hash);  in __rhashtable_insert_fast()
736 		return rhashtable_insert_slow(ht, key, obj);  in __rhashtable_insert_fast()
746 		     params.obj_cmpfn(&arg, rht_obj(ht, head)) :  in __rhashtable_insert_fast()
747 		     rhashtable_compare(&arg, rht_obj(ht, head)))) {  in __rhashtable_insert_fast()
752 		data = rht_obj(ht, head);  in __rhashtable_insert_fast()
777 	if (unlikely(rht_grow_above_max(ht, tbl)))  in __rhashtable_insert_fast()
780 	if (unlikely(rht_grow_above_100(ht, tbl)))  in __rhashtable_insert_fast()
794 	atomic_inc(&ht->nelems);  in __rhashtable_insert_fast()
797 	if (rht_grow_above_75(ht, tbl))  in __rhashtable_insert_fast()
798 		schedule_work(&ht->run_work);  in __rhashtable_insert_fast()
827 	struct rhashtable *ht, struct rhash_head *obj,  in rhashtable_insert_fast()  argument
832 	ret = __rhashtable_insert_fast(ht, NULL, obj, params, false);  in rhashtable_insert_fast()
859 	return PTR_ERR(__rhashtable_insert_fast(&hlt->ht, key, &list->rhead,  in rhltable_insert_key()
882 	const char *key = rht_obj(&hlt->ht, &list->rhead);  in rhltable_insert()
904 	struct rhashtable *ht, struct rhash_head *obj,  in rhashtable_lookup_insert_fast()  argument
907 	const char *key = rht_obj(ht, obj);  in rhashtable_lookup_insert_fast()
910 	BUG_ON(ht->p.obj_hashfn);  in rhashtable_lookup_insert_fast()
912 	ret = __rhashtable_insert_fast(ht, key + ht->p.key_offset, obj, params,  in rhashtable_lookup_insert_fast()
931 	struct rhashtable *ht, struct rhash_head *obj,  in rhashtable_lookup_get_insert_fast()  argument
934 	const char *key = rht_obj(ht, obj);  in rhashtable_lookup_get_insert_fast()
936 	BUG_ON(ht->p.obj_hashfn);  in rhashtable_lookup_get_insert_fast()
938 	return __rhashtable_insert_fast(ht, key + ht->p.key_offset, obj, params,  in rhashtable_lookup_get_insert_fast()
958 	struct rhashtable *ht, const void *key, struct rhash_head *obj,  in rhashtable_lookup_insert_key()  argument
963 	BUG_ON(!ht->p.obj_hashfn || !key);  in rhashtable_lookup_insert_key()
965 	ret = __rhashtable_insert_fast(ht, key, obj, params, false);  in rhashtable_lookup_insert_key()
984 	struct rhashtable *ht, const void *key, struct rhash_head *obj,  in rhashtable_lookup_get_insert_key()  argument
987 	BUG_ON(!ht->p.obj_hashfn || !key);  in rhashtable_lookup_get_insert_key()
989 	return __rhashtable_insert_fast(ht, key, obj, params, false);  in rhashtable_lookup_get_insert_key()
994 	struct rhashtable *ht, struct bucket_table *tbl,  in __rhashtable_remove_fast_one()  argument
1004 	hash = rht_head_hashfn(ht, tbl, obj, params);  in __rhashtable_remove_fast_one()
1063 		atomic_dec(&ht->nelems);  in __rhashtable_remove_fast_one()
1064 		if (unlikely(ht->p.automatic_shrinking &&  in __rhashtable_remove_fast_one()
1065 			     rht_shrink_below_30(ht, tbl)))  in __rhashtable_remove_fast_one()
1066 			schedule_work(&ht->run_work);  in __rhashtable_remove_fast_one()
1075 	struct rhashtable *ht, struct rhash_head *obj,  in __rhashtable_remove_fast()  argument
1083 	tbl = rht_dereference_rcu(ht->tbl, ht);  in __rhashtable_remove_fast()
1090 	while ((err = __rhashtable_remove_fast_one(ht, tbl, obj, params,  in __rhashtable_remove_fast()
1092 	       (tbl = rht_dereference_rcu(tbl->future_tbl, ht)))  in __rhashtable_remove_fast()
1116 	struct rhashtable *ht, struct rhash_head *obj,  in rhashtable_remove_fast()  argument
1119 	return __rhashtable_remove_fast(ht, obj, params, false);  in rhashtable_remove_fast()
1141 	return __rhashtable_remove_fast(&hlt->ht, &list->rhead, params, true);  in rhltable_remove()
1146 	struct rhashtable *ht, struct bucket_table *tbl,  in __rhashtable_replace_fast()  argument
1159 	hash = rht_head_hashfn(ht, tbl, obj_old, params);  in __rhashtable_replace_fast()
1160 	if (hash != rht_head_hashfn(ht, tbl, obj_new, params))  in __rhashtable_replace_fast()
1208 	struct rhashtable *ht, struct rhash_head *obj_old,  in rhashtable_replace_fast()  argument
1217 	tbl = rht_dereference_rcu(ht->tbl, ht);  in rhashtable_replace_fast()
1224 	while ((err = __rhashtable_replace_fast(ht, tbl, obj_old,  in rhashtable_replace_fast()
1226 	       (tbl = rht_dereference_rcu(tbl->future_tbl, ht)))  in rhashtable_replace_fast()
1258 	return rhashtable_walk_enter(&hlt->ht, iter);  in rhltable_walk_enter()
1274 	return rhashtable_free_and_destroy(&hlt->ht, free_fn, arg);  in rhltable_free_and_destroy()