diff options
| author | Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> | 2015-11-04 09:44:29 +0100 |
|---|---|---|
| committer | Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> | 2016-11-10 13:28:48 +0100 |
| commit | a71bdbfa99272f0beb92b669d2bbc626871e00e5 (patch) | |
| tree | 25a9bba50ef7e4b5b8c33ce2cf73d12e5a1fddcd /net | |
| parent | 9be37d2acdc4fa452a9e250341cbb77668ab94e7 (diff) | |
netfilter: ipset: Fix reported memory size for hash:* types
The calculation of the full allocated memory did not take
into account the size of the base hash bucket structure at some
places.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/ipset/ip_set_hash_gen.h | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h index 1c9b84e53dcc..88b70fcc5ac5 100644 --- a/net/netfilter/ipset/ip_set_hash_gen.h +++ b/net/netfilter/ipset/ip_set_hash_gen.h @@ -85,6 +85,8 @@ struct htable { }; #define hbucket(h, i) ((h)->bucket[i]) +#define ext_size(n, dsize) \ + (sizeof(struct hbucket) + (n) * (dsize)) #ifndef IPSET_NET_COUNT #define IPSET_NET_COUNT 1 @@ -519,7 +521,7 @@ mtype_expire(struct ip_set *set, struct htype *h) d++; } tmp->pos = d; - set->ext_size -= AHASH_INIT_SIZE * dsize; + set->ext_size -= ext_size(AHASH_INIT_SIZE, dsize); rcu_assign_pointer(hbucket(t, i), tmp); kfree_rcu(n, rcu); } @@ -625,7 +627,7 @@ retry: goto cleanup; } m->size = AHASH_INIT_SIZE; - extsize = sizeof(*m) + AHASH_INIT_SIZE * dsize; + extsize = ext_size(AHASH_INIT_SIZE, dsize); RCU_INIT_POINTER(hbucket(t, key), m); } else if (m->pos >= m->size) { struct hbucket *ht; @@ -645,7 +647,7 @@ retry: memcpy(ht, m, sizeof(struct hbucket) + m->size * dsize); ht->size = m->size + AHASH_INIT_SIZE; - extsize += AHASH_INIT_SIZE * dsize; + extsize += ext_size(AHASH_INIT_SIZE, dsize); kfree(m); m = ht; RCU_INIT_POINTER(hbucket(t, key), ht); @@ -727,7 +729,7 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext, if (!n) return -ENOMEM; n->size = AHASH_INIT_SIZE; - set->ext_size += sizeof(*n) + AHASH_INIT_SIZE * set->dsize; + set->ext_size += ext_size(AHASH_INIT_SIZE, set->dsize); goto copy_elem; } for (i = 0; i < n->pos; i++) { @@ -791,7 +793,7 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext, memcpy(n, old, sizeof(struct hbucket) + old->size * set->dsize); n->size = old->size + AHASH_INIT_SIZE; - set->ext_size += AHASH_INIT_SIZE * set->dsize; + set->ext_size += ext_size(AHASH_INIT_SIZE, set->dsize); } copy_elem: @@ -883,7 +885,7 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext, k++; } if (n->pos == 0 && k == 0) { - set->ext_size -= sizeof(*n) + n->size * dsize; + set->ext_size -= ext_size(n->size, dsize); rcu_assign_pointer(hbucket(t, key), NULL); kfree_rcu(n, rcu); } else if (k >= AHASH_INIT_SIZE) { @@ -902,7 +904,7 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext, k++; } tmp->pos = k; - set->ext_size -= AHASH_INIT_SIZE * dsize; + set->ext_size -= ext_size(AHASH_INIT_SIZE, dsize); rcu_assign_pointer(hbucket(t, key), tmp); kfree_rcu(n, rcu); } |