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| author | Daniel Lezcano | 2008-02-20 09:21:47 +0100 |
|---|---|---|
| committer | David S. Miller | 2008-02-20 09:21:47 +0100 |
| commit | c15853f2c1c9baaa27bbc494cd183be96f6d9bb9 (patch) | |
| tree | 0f5735eb9c3fedc715f58d4aeeeed162eabb5d3a /net/sctp/socket.c | |
| parent | [NIU]: More BMAC alt MAC address fixes. (diff) | |
| download | kernel-qcow2-linux-c15853f2c1c9baaa27bbc494cd183be96f6d9bb9.tar.gz kernel-qcow2-linux-c15853f2c1c9baaa27bbc494cd183be96f6d9bb9.tar.xz kernel-qcow2-linux-c15853f2c1c9baaa27bbc494cd183be96f6d9bb9.zip | |
veth: fix dev refcount race
When deleting the veth driver, veth_close calls netif_carrier_off
for the two extremities of the network device. netif_carrier_off on
the peer device will fire an event and hold a reference on the peer
device. Just after, the peer is unregistered taking the rtnl_lock while
the linkwatch_event is scheduled. If __linkwatch_run_queue does not
occurs before the unregistering, unregister_netdevice will wait for
the dev refcount to reach zero holding the rtnl_lock and linkwatch_event
will wait for the rtnl_lock and hold the dev refcount.
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/socket.c')
0 files changed, 0 insertions, 0 deletions