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| author | Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> | 2015-11-07 11:24:51 +0100 |
|---|---|---|
| committer | Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> | 2015-11-07 11:28:49 +0100 |
| commit | 0aae24eb409fc429f54ca3809f904f1b91e295e0 (patch) | |
| tree | ca66562d0bf42b04097f5f52b83cc9d9867acc2b /net/netfilter | |
| parent | e9dfdc052d018268926ab769d5b7598226713d5a (diff) | |
| download | blackbird-op-linux-0aae24eb409fc429f54ca3809f904f1b91e295e0.tar.gz blackbird-op-linux-0aae24eb409fc429f54ca3809f904f1b91e295e0.zip | |
netfilter: ipset: Fix hash type expire: release empty hash bucket block
When all entries are expired/all slots are empty, release the bucket.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/ipset/ip_set_hash_gen.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h index fa4f6374bb73..e5336ab36d67 100644 --- a/net/netfilter/ipset/ip_set_hash_gen.h +++ b/net/netfilter/ipset/ip_set_hash_gen.h @@ -476,7 +476,7 @@ static void mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize) { struct htable *t; - struct hbucket *n; + struct hbucket *n, *tmp; struct mtype_elem *data; u32 i, j, d; #ifdef IP_SET_HASH_WITH_NETS @@ -511,9 +511,14 @@ mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize) } } if (d >= AHASH_INIT_SIZE) { - struct hbucket *tmp = kzalloc(sizeof(*tmp) + - (n->size - AHASH_INIT_SIZE) * dsize, - GFP_ATOMIC); + if (d >= n->size) { + rcu_assign_pointer(hbucket(t, i), NULL); + kfree_rcu(n, rcu); + continue; + } + tmp = kzalloc(sizeof(*tmp) + + (n->size - AHASH_INIT_SIZE) * dsize, + GFP_ATOMIC); if (!tmp) /* Still try to delete expired elements */ continue; |
