Following patches will add new private members, restore struct nft_hash
as preparation.
Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
---
net/netfilter/nft_hash.c | 44 ++++++++++++++++++++++++--------------------
1 file changed, 24 insertions(+), 20 deletions(-)
diff --git a/net/netfilter/nft_hash.c b/net/netfilter/nft_hash.c
index 4585c57..80a6a6d 100644
--- a/net/netfilter/nft_hash.c
+++ b/net/netfilter/nft_hash.c
@@ -23,6 +23,10 @@
/* We target a hash table size of 4, element hint is 75% of final size */
#define NFT_HASH_ELEMENT_HINT 3
+struct nft_hash {
+ struct rhashtable ht;
+};
+
struct nft_hash_elem {
struct rhash_head node;
struct nft_data key;
@@ -35,10 +39,10 @@ static bool nft_hash_lookup(const struct nft_set *set,
const struct nft_data *key,
struct nft_data *data)
{
- struct rhashtable *priv = nft_set_priv(set);
+ struct nft_hash *priv = nft_set_priv(set);
const struct nft_hash_elem *he;
- he = rhashtable_lookup_fast(priv, key, nft_hash_params);
+ he = rhashtable_lookup_fast(&priv->ht, key, nft_hash_params);
if (he && set->flags & NFT_SET_MAP)
nft_data_copy(data, he->data);
@@ -48,7 +52,7 @@ static bool nft_hash_lookup(const struct nft_set *set,
static int nft_hash_insert(const struct nft_set *set,
const struct nft_set_elem *elem)
{
- struct rhashtable *priv = nft_set_priv(set);
+ struct nft_hash *priv = nft_set_priv(set);
struct nft_hash_elem *he;
unsigned int size;
int err;
@@ -68,7 +72,7 @@ static int nft_hash_insert(const struct nft_set *set,
if (set->flags & NFT_SET_MAP)
nft_data_copy(he->data, &elem->data);
- err = rhashtable_insert_fast(priv, &he->node, nft_hash_params);
+ err = rhashtable_insert_fast(&priv->ht, &he->node, nft_hash_params);
if (err)
kfree(he);
@@ -87,19 +91,19 @@ static void nft_hash_elem_destroy(const struct nft_set *set,
static void nft_hash_remove(const struct nft_set *set,
const struct nft_set_elem *elem)
{
- struct rhashtable *priv = nft_set_priv(set);
+ struct nft_hash *priv = nft_set_priv(set);
- rhashtable_remove_fast(priv, elem->cookie, nft_hash_params);
+ rhashtable_remove_fast(&priv->ht, elem->cookie, nft_hash_params);
synchronize_rcu();
kfree(elem->cookie);
}
static int nft_hash_get(const struct nft_set *set, struct nft_set_elem *elem)
{
- struct rhashtable *priv = nft_set_priv(set);
+ struct nft_hash *priv = nft_set_priv(set);
struct nft_hash_elem *he;
- he = rhashtable_lookup_fast(priv, &elem->key, nft_hash_params);
+ he = rhashtable_lookup_fast(&priv->ht, &elem->key, nft_hash_params);
if (!he)
return -ENOENT;
@@ -114,13 +118,13 @@ static int nft_hash_get(const struct nft_set *set, struct nft_set_elem *elem)
static void nft_hash_walk(const struct nft_ctx *ctx, const struct nft_set *set,
struct nft_set_iter *iter)
{
- struct rhashtable *priv = nft_set_priv(set);
+ struct nft_hash *priv = nft_set_priv(set);
const struct nft_hash_elem *he;
struct rhashtable_iter hti;
struct nft_set_elem elem;
int err;
- err = rhashtable_walk_init(priv, &hti);
+ err = rhashtable_walk_init(&priv->ht, &hti);
iter->err = err;
if (err)
return;
@@ -163,7 +167,7 @@ out:
static unsigned int nft_hash_privsize(const struct nlattr * const nla[])
{
- return sizeof(struct rhashtable);
+ return sizeof(struct nft_hash);
}
static const struct rhashtable_params nft_hash_params = {
@@ -176,35 +180,35 @@ static int nft_hash_init(const struct nft_set *set,
const struct nft_set_desc *desc,
const struct nlattr * const tb[])
{
- struct rhashtable *priv = nft_set_priv(set);
+ struct nft_hash *priv = nft_set_priv(set);
struct rhashtable_params params = nft_hash_params;
params.nelem_hint = desc->size ?: NFT_HASH_ELEMENT_HINT;
params.key_len = set->klen;
- return rhashtable_init(priv, ¶ms);
+ return rhashtable_init(&priv->ht, ¶ms);
}
static void nft_hash_destroy(const struct nft_set *set)
{
- struct rhashtable *priv = nft_set_priv(set);
+ struct nft_hash *priv = nft_set_priv(set);
const struct bucket_table *tbl;
struct nft_hash_elem *he;
struct rhash_head *pos, *next;
unsigned int i;
/* Stop an eventual async resizing */
- priv->being_destroyed = true;
- mutex_lock(&priv->mutex);
+ priv->ht.being_destroyed = true;
+ mutex_lock(&priv->ht.mutex);
- tbl = rht_dereference(priv->tbl, priv);
+ tbl = rht_dereference(priv->ht.tbl, &priv->ht);
for (i = 0; i < tbl->size; i++) {
rht_for_each_entry_safe(he, pos, next, tbl, i, node)
nft_hash_elem_destroy(set, he);
}
- mutex_unlock(&priv->mutex);
+ mutex_unlock(&priv->ht.mutex);
- rhashtable_destroy(priv);
+ rhashtable_destroy(&priv->ht);
}
static bool nft_hash_estimate(const struct nft_set_desc *desc, u32 features,
@@ -217,7 +221,7 @@ static bool nft_hash_estimate(const struct nft_set_desc *desc, u32 features,
esize += FIELD_SIZEOF(struct nft_hash_elem, data[0]);
if (desc->size) {
- est->size = sizeof(struct rhashtable) +
+ est->size = sizeof(struct nft_hash) +
roundup_pow_of_two(desc->size * 4 / 3) *
sizeof(struct nft_hash_elem *) +
desc->size * esize;
--
2.1.0
--
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