]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/commit - net/openvswitch/dp_notify.c
openvswitch: fix hangup on vxlan/gre/geneve device deletion
authorPaolo Abeni <pabeni@redhat.com>
Tue, 1 Dec 2015 17:33:36 +0000 (18:33 +0100)
committerDavid S. Miller <davem@davemloft.net>
Thu, 3 Dec 2015 19:29:25 +0000 (14:29 -0500)
commit13175303024c8f4cd09e51079a8fcbbe572111ec
tree86b2fe0c37663a516936295bf695a6894d5b33c1
parent4eba7bb1d72d9bde67d810d09bf62dc207b63c5c
openvswitch: fix hangup on vxlan/gre/geneve device deletion

Each openvswitch tunnel vport (vxlan,gre,geneve) holds a reference
to the underlying tunnel device, but never released it when such
device is deleted.
Deleting the underlying device via the ip tool cause the kernel to
hangup in the netdev_wait_allrefs() loop.
This commit ensure that on device unregistration dp_detach_port_notify()
is called for all vports that hold the device reference, properly
releasing it.

Fixes: 614732eaa12d ("openvswitch: Use regular VXLAN net_device device")
Fixes: b2acd1dc3949 ("openvswitch: Use regular GRE net_device instead of vport")
Fixes: 6b001e682e90 ("openvswitch: Use Geneve device.")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Flavio Leitner <fbl@sysclose.org>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/openvswitch/dp_notify.c
net/openvswitch/vport-netdev.c