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authorEric Dumazet <edumazet@google.com>2021-12-07 04:30:38 +0300
committerJakub Kicinski <kuba@kernel.org>2021-12-08 07:45:00 +0300
commite7c8ab8419d7a06bad7cb0b0289b5426029ac221 (patch)
treefd4fc054aad5a84e58ea4ea45619402c25a31e46 /net/openvswitch
parente4b8954074f6d0db01c8c97d338a67f9389c042f (diff)
downloadlinux-e7c8ab8419d7a06bad7cb0b0289b5426029ac221.tar.xz
openvswitch: add net device refcount tracker to struct vport
Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/openvswitch')
-rw-r--r--net/openvswitch/vport-netdev.c8
-rw-r--r--net/openvswitch/vport.h2
2 files changed, 6 insertions, 4 deletions
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index c1ad6699b1f8..b498dac4e1e0 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -82,7 +82,7 @@ struct vport *ovs_netdev_link(struct vport *vport, const char *name)
err = -ENODEV;
goto error_free_vport;
}
-
+ netdev_tracker_alloc(vport->dev, &vport->dev_tracker, GFP_KERNEL);
if (vport->dev->flags & IFF_LOOPBACK ||
(vport->dev->type != ARPHRD_ETHER &&
vport->dev->type != ARPHRD_NONE) ||
@@ -115,7 +115,7 @@ error_master_upper_dev_unlink:
error_unlock:
rtnl_unlock();
error_put:
- dev_put(vport->dev);
+ dev_put_track(vport->dev, &vport->dev_tracker);
error_free_vport:
ovs_vport_free(vport);
return ERR_PTR(err);
@@ -137,7 +137,7 @@ static void vport_netdev_free(struct rcu_head *rcu)
{
struct vport *vport = container_of(rcu, struct vport, rcu);
- dev_put(vport->dev);
+ dev_put_track(vport->dev, &vport->dev_tracker);
ovs_vport_free(vport);
}
@@ -173,7 +173,7 @@ void ovs_netdev_tunnel_destroy(struct vport *vport)
*/
if (vport->dev->reg_state == NETREG_REGISTERED)
rtnl_delete_link(vport->dev);
- dev_put(vport->dev);
+ dev_put_track(vport->dev, &vport->dev_tracker);
vport->dev = NULL;
rtnl_unlock();
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index 8a930ca6d6b1..9de5030d9801 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -58,6 +58,7 @@ struct vport_portids {
/**
* struct vport - one port within a datapath
* @dev: Pointer to net_device.
+ * @dev_tracker: refcount tracker for @dev reference
* @dp: Datapath to which this port belongs.
* @upcall_portids: RCU protected 'struct vport_portids'.
* @port_no: Index into @dp's @ports array.
@@ -69,6 +70,7 @@ struct vport_portids {
*/
struct vport {
struct net_device *dev;
+ netdevice_tracker dev_tracker;
struct datapath *dp;
struct vport_portids __rcu *upcall_portids;
u16 port_no;