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(parent: e81fbf6) | patch
net_sched: hold tcf_lock in netdevice notifier
authorCong Wang <cwang@twopensource.com>
Wed, 16 Jul 2014 21:25:31 +0000 (14:25 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 21 Jul 2014 03:31:42 +0000 (20:31 -0700)
commit224e923cd9b001c612b7b68933264156271722f9
tree0b1d32fe64e7157ac362a4d5778c9aae0cf5bfadtree | snapshot (tar.gz zip)
parente81fbf6cd65247e6c65719eacf2af5856db3d5a9commit | diff
net_sched: hold tcf_lock in netdevice notifier

We modify mirred action (m->tcfm_dev) in netdev event, we need to
prevent on-going mirred actions from reading freed m->tcfm_dev.
So we need to acquire this spin lock.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/sched/act_mirred.c diff | blob | blame | history