diff options
-rw-r--r-- | include/linux/rhashtable.h | 2 | ||||
-rw-r--r-- | lib/rhashtable.c | 34 | ||||
-rw-r--r-- | net/netfilter/nft_hash.c | 11 |
3 files changed, 10 insertions, 37 deletions
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index b54e24a08806..f624d4b5045f 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -105,8 +105,6 @@ int rhashtable_init(struct rhashtable *ht, struct rhashtable_params *params); void rhashtable_insert(struct rhashtable *ht, struct rhash_head *node); bool rhashtable_remove(struct rhashtable *ht, struct rhash_head *node); -void rhashtable_remove_pprev(struct rhashtable *ht, struct rhash_head *obj, - struct rhash_head __rcu **pprev); bool rht_grow_above_75(const struct rhashtable *ht, size_t new_size); bool rht_shrink_below_30(const struct rhashtable *ht, size_t new_size); diff --git a/lib/rhashtable.c b/lib/rhashtable.c index 0bd29c178910..e6b85c4a5828 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -345,32 +345,6 @@ void rhashtable_insert(struct rhashtable *ht, struct rhash_head *obj) EXPORT_SYMBOL_GPL(rhashtable_insert); /** - * rhashtable_remove_pprev - remove object from hash table given previous element - * @ht: hash table - * @obj: pointer to hash head inside object - * @pprev: pointer to previous element - * - * Identical to rhashtable_remove() but caller is alreayd aware of the element - * in front of the element to be deleted. This is in particular useful for - * deletion when combined with walking or lookup. - */ -void rhashtable_remove_pprev(struct rhashtable *ht, struct rhash_head *obj, - struct rhash_head __rcu **pprev) -{ - struct bucket_table *tbl = rht_dereference(ht->tbl, ht); - - ASSERT_RHT_MUTEX(ht); - - RCU_INIT_POINTER(*pprev, obj->next); - ht->nelems--; - - if (ht->p.shrink_decision && - ht->p.shrink_decision(ht, tbl->size)) - rhashtable_shrink(ht); -} -EXPORT_SYMBOL_GPL(rhashtable_remove_pprev); - -/** * rhashtable_remove - remove object from hash table * @ht: hash table * @obj: pointer to hash head inside object @@ -403,7 +377,13 @@ bool rhashtable_remove(struct rhashtable *ht, struct rhash_head *obj) continue; } - rhashtable_remove_pprev(ht, he, pprev); + RCU_INIT_POINTER(*pprev, he->next); + ht->nelems--; + + if (ht->p.shrink_decision && + ht->p.shrink_decision(ht, tbl->size)) + rhashtable_shrink(ht); + return true; } diff --git a/net/netfilter/nft_hash.c b/net/netfilter/nft_hash.c index d93f1f4c22a9..7f903cf9a1b9 100644 --- a/net/netfilter/nft_hash.c +++ b/net/netfilter/nft_hash.c @@ -83,15 +83,10 @@ static void nft_hash_remove(const struct nft_set *set, const struct nft_set_elem *elem) { struct rhashtable *priv = nft_set_priv(set); - struct rhash_head *he, __rcu **pprev; - - pprev = elem->cookie; - he = rht_dereference((*pprev), priv); - - rhashtable_remove_pprev(priv, he, pprev); + rhashtable_remove(priv, elem->cookie); synchronize_rcu(); - kfree(he); + kfree(elem->cookie); } struct nft_compare_arg { @@ -105,7 +100,7 @@ static bool nft_hash_compare(void *ptr, void *arg) struct nft_compare_arg *x = arg; if (!nft_data_cmp(&he->key, &x->elem->key, x->set->klen)) { - x->elem->cookie = &he->node; + x->elem->cookie = he; x->elem->flags = 0; if (x->set->flags & NFT_SET_MAP) nft_data_copy(&x->elem->data, he->data); |