[PATCH v3 net-next 21/23] net: failover: add net device refcount tracker
flat view
STALE1763d
From: Eric Dumazet <hidden>
Date: 2021-12-05 04:24:31
Subsystem:
failover module, networking [general], the rest · Maintainers:
Sridhar Samudrala, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v3 of 2 in this series.
Revisions (2)
- v2 [diff vs current]
- v3 current
From: Eric Dumazet <redacted> Signed-off-by: Eric Dumazet <redacted> --- include/net/failover.h | 1 + net/core/failover.c | 4 ++-- 2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/net/failover.h b/include/net/failover.h
index bb15438f39c7d98fe7c5637f08c3cfb23e7e79d2..f2b42b4b9cd6c1fb6561e7deca3c549dcf04f20f 100644
--- a/include/net/failover.h
+++ b/include/net/failover.h@@ -25,6 +25,7 @@ struct failover_ops { struct failover { struct list_head list; struct net_device __rcu *failover_dev; + netdevice_tracker dev_tracker; struct failover_ops __rcu *ops; };
diff --git a/net/core/failover.c b/net/core/failover.c
index b5cd3c727285d7a1738118c246abce8d31dac08f..dcaa92a85ea23c54bc5ea68eb8a0f38fb31ff436 100644
--- a/net/core/failover.c
+++ b/net/core/failover.c@@ -252,7 +252,7 @@ struct failover *failover_register(struct net_device *dev, return ERR_PTR(-ENOMEM); rcu_assign_pointer(failover->ops, ops); - dev_hold(dev); + dev_hold_track(dev, &failover->dev_tracker, GFP_KERNEL); dev->priv_flags |= IFF_FAILOVER; rcu_assign_pointer(failover->failover_dev, dev);
@@ -285,7 +285,7 @@ void failover_unregister(struct failover *failover) failover_dev->name); failover_dev->priv_flags &= ~IFF_FAILOVER; - dev_put(failover_dev); + dev_put_track(failover_dev, &failover->dev_tracker); spin_lock(&failover_lock); list_del(&failover->list);
--
2.34.1.400.ga245620fadb-goog