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-rw-r--r--include/linux/rhashtable.h2
-rw-r--r--lib/rhashtable.c34
-rw-r--r--net/netfilter/nft_hash.c11
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);