[PATCH net-next 13/19] net: add net device refcount tracker to struct neighbour
flat view
STALE1597d
From: Eric Dumazet <hidden>
Date: 2021-12-02 03:23:08
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 3 in this series.
Revisions (3)
- v1 current
- v2 [diff vs current]
- v3 [diff vs current]
From: Eric Dumazet <redacted> Signed-off-by: Eric Dumazet <redacted> --- include/net/neighbour.h | 1 + net/core/neighbour.c | 4 ++-- 2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 55af812c3ed5704813bd64aa760246255aa5f93f..190b07fe089ef5c900a0d97df0bc4d667d8bdcd6 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h@@ -158,6 +158,7 @@ struct neighbour { struct list_head managed_list; struct rcu_head rcu; struct net_device *dev; + netdevice_tracker dev_tracker; u8 primary_key[0]; } __randomize_layout;
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 72ba027c34cfea6f38a9e78927c35048ebfe7a7f..fb340347e4d88f0058383697071cfb5bfbd9f925 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c@@ -624,7 +624,7 @@ ___neigh_create(struct neigh_table *tbl, const void *pkey, memcpy(n->primary_key, pkey, key_len); n->dev = dev; - dev_hold(dev); + dev_hold_track(dev, &n->dev_tracker, GFP_ATOMIC); /* Protocol specific setup. */ if (tbl->constructor && (error = tbl->constructor(n)) < 0) {
@@ -880,7 +880,7 @@ void neigh_destroy(struct neighbour *neigh) if (dev->netdev_ops->ndo_neigh_destroy) dev->netdev_ops->ndo_neigh_destroy(dev, neigh); - dev_put(dev); + dev_put_track(dev, &neigh->dev_tracker); neigh_parms_put(neigh->parms); neigh_dbg(2, "neigh %p is destroyed\n", neigh);
--
2.34.0.rc2.393.gf8c9666880-goog