diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-12-02 05:26:35 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-12-02 14:56:04 +0300 |
| commit | 213f5f8f31f10aa1e83187ae20fb7fa4e626b724 (patch) | |
| tree | befc53d79958834fbd3751c444cf98786dde5188 /net/ipv4/fib_frontend.c | |
| parent | a37a0ee4d25c152a087c5e913b76f207eaebdb54 (diff) | |
| download | linux-213f5f8f31f10aa1e83187ae20fb7fa4e626b724.tar.xz | |
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 'net/ipv4/fib_frontend.c')
| -rw-r--r-- | net/ipv4/fib_frontend.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 9fe13e4f5d08..4d61ddd8a0ec 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -1582,7 +1582,7 @@ static int __net_init fib_net_init(struct net *net) int error; #ifdef CONFIG_IP_ROUTE_CLASSID - net->ipv4.fib_num_tclassid_users = 0; + atomic_set(&net->ipv4.fib_num_tclassid_users, 0); #endif error = ip_fib_net_init(net); if (error < 0) |