diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-12-01 18:26:35 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-12-02 11:56:04 +0000 |
| commit | 213f5f8f31f10aa1e83187ae20fb7fa4e626b724 (patch) | |
| tree | befc53d79958834fbd3751c444cf98786dde5188 /include/net/netns | |
| parent | a37a0ee4d25c152a087c5e913b76f207eaebdb54 (diff) | |
ipv4: convert fib_num_tclassid_users to atomic_t
Before commit faa041a40b9f ("ipv4: Create cleanup helper for fib_nh")
changes to net->ipv4.fib_num_tclassid_users were protected by RTNL.
After the change, this is no longer the case, as free_fib_info_rcu()
runs after rcu grace period, without rtnl being held.
Fixes: faa041a40b9f ("ipv4: Create cleanup helper for fib_nh")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: David Ahern <dsahern@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/netns')
| -rw-r--r-- | include/net/netns/ipv4.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index 2f65701a43c9..6c5b2efc4f17 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -65,7 +65,7 @@ struct netns_ipv4 { bool fib_has_custom_local_routes; bool fib_offload_disabled; #ifdef CONFIG_IP_ROUTE_CLASSID - int fib_num_tclassid_users; + atomic_t fib_num_tclassid_users; #endif struct hlist_head *fib_table_hash; struct sock *fibnl; |