diff options
| author |   Eric Dumazet <edumazet@google.com> | 2012-08-22 21:50:59 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-08-23 09:24:42 -0700 |
| commit | 748e2d9396a18c3fd3d07d47c1b41320acf1fbf4 (patch) | |
| tree | 49bde8c370615258baada1d43acda2b3fb3625c2 /net/core/fib_rules.c | |
| parent | packet: Protect packet sk list with mutex (v2) (diff) | |
| download | linux-dev-748e2d9396a18c3fd3d07d47c1b41320acf1fbf4.tar.xz linux-dev-748e2d9396a18c3fd3d07d47c1b41320acf1fbf4.zip | |
net: reinstate rtnl in call_netdevice_notifiers()
Eric Biederman pointed out that not holding RTNL while calling
call_netdevice_notifiers() was racy.
This patch is a direct transcription his feedback
against commit 0115e8e30d6fc (net: remove delay at device dismantle)
Thanks Eric !
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Mahesh Bandewar <maheshb@google.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/fib_rules.c')
| -rw-r--r-- | net/core/fib_rules.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index 585093755c23..ab7db83236c9 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -711,16 +711,15 @@ static int fib_rules_event(struct notifier_block *this, unsigned long event, struct net *net = dev_net(dev); struct fib_rules_ops *ops; + ASSERT_RTNL(); switch (event) { case NETDEV_REGISTER: - ASSERT_RTNL(); list_for_each_entry(ops, &net->rules_ops, list) attach_rules(&ops->rules_list, dev); break; case NETDEV_UNREGISTER: - ASSERT_RTNL(); list_for_each_entry(ops, &net->rules_ops, list) detach_rules(&ops->rules_list, dev); break; |