| Message ID | 4CC965EB.60600@parallels.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Pavel Emelyanov <xemul@parallels.com> Date: Thu, 28 Oct 2010 16:00:43 +0400 > When we stop a namespace we flush the table and free one, but the > added fn_zone-s (and their hashes if grown) are leaked. Need to free. > Tries releases all its stuff in the flushing code. > > Shame on us - this bug exists since the very first make-fib-per-net > patches in 2.6.27 :( > > Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index ba3666d..07bdb5e 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -158,6 +158,8 @@ extern int fib_table_flush(struct fib_table *table); extern void fib_table_select_default(struct fib_table *table, const struct flowi *flp, struct fib_result *res); +extern void fib_free_table(struct fib_table *tb); + #ifndef CONFIG_IP_MULTIPLE_TABLES diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 36e27c2..eb6f69a 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -1052,7 +1052,7 @@ static void ip_fib_net_exit(struct net *net) hlist_for_each_entry_safe(tb, node, tmp, head, tb_hlist) { hlist_del(node); fib_table_flush(tb); - kfree(tb); + fib_free_table(tb); } } kfree(net->ipv4.fib_table_hash); diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c index b232375..b3acb04 100644 --- a/net/ipv4/fib_hash.c +++ b/net/ipv4/fib_hash.c @@ -716,6 +716,24 @@ int fib_table_flush(struct fib_table *tb) return found; } +void fib_free_table(struct fib_table *tb) +{ + struct fn_hash *table = (struct fn_hash *) tb->tb_data; + struct fn_zone *fz, *next; + + next = table->fn_zone_list; + while (next != NULL) { + fz = next; + next = fz->fz_next; + + if (fz->fz_hash != fz->fz_embedded_hash) + fz_hash_free(fz->fz_hash, fz->fz_divisor); + + kfree(fz); + } + + kfree(tb); +} static inline int fn_hash_dump_bucket(struct sk_buff *skb, struct netlink_callback *cb, diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index b144508..200eb53 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1797,6 +1797,11 @@ int fib_table_flush(struct fib_table *tb) return found; } +void fib_free_table(struct fib_table *tb) +{ + kfree(tb); +} + void fib_table_select_default(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
When we stop a namespace we flush the table and free one, but the added fn_zone-s (and their hashes if grown) are leaked. Need to free. Tries releases all its stuff in the flushing code. Shame on us - this bug exists since the very first make-fib-per-net patches in 2.6.27 :( Signed-off-by: Pavel Emelyanov <xemul@openvz.org> --- -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html