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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>
This commit is contained in:
Jozsef Kadlecsik 2015-11-04 09:44:29 +01:00
parent 9be37d2acd
commit a71bdbfa99
1 changed files with 9 additions and 7 deletions
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16
net/netfilter/ipset/ip_set_hash_gen.h
View File

@ -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 @@ mtype_resize(struct ip_set *set, bool retried)
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 @@ mtype_resize(struct ip_set *set, bool retried)
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);
}