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| author | stephen hemminger | 2010-07-22 20:45:04 +0200 |
|---|---|---|
| committer | David S. Miller | 2010-07-25 06:04:20 +0200 |
| commit | 3b87956ea645fb4de7e59c7d0aa94de04be72615 (patch) | |
| tree | 0dde04e6dfad7cd76afbb31eff72a8f08a574a9c /include | |
| parent | Merge branch 'wimax-2.6.35.y' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
| download | kernel-qcow2-linux-3b87956ea645fb4de7e59c7d0aa94de04be72615.tar.gz kernel-qcow2-linux-3b87956ea645fb4de7e59c7d0aa94de04be72615.tar.xz kernel-qcow2-linux-3b87956ea645fb4de7e59c7d0aa94de04be72615.zip | |
net sched: fix race in mirred device removal
This fixes hang when target device of mirred packet classifier
action is removed.
If a mirror or redirection action is configured to cause packets
to go to another device, the classifier holds a ref count, but was assuming
the adminstrator cleaned up all redirections before removing. The fix
is to add a notifier and cleanup during unregister.
The new list is implicitly protected by RTNL mutex because
it is held during filter add/delete as well as notifier.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/tc_act/tc_mirred.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/tc_act/tc_mirred.h b/include/net/tc_act/tc_mirred.h index ceac661cdfd5..cfe2943690ff 100644 --- a/include/net/tc_act/tc_mirred.h +++ b/include/net/tc_act/tc_mirred.h @@ -9,6 +9,7 @@ struct tcf_mirred { int tcfm_ifindex; int tcfm_ok_push; struct net_device *tcfm_dev; + struct list_head tcfm_list; }; #define to_mirred(pc) \ container_of(pc, struct tcf_mirred, common) |