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Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c10
-rw-r--r--net/core/dev_ioctl.c5
-rw-r--r--net/core/drop_monitor.c6
-rw-r--r--net/core/dst.c8
-rw-r--r--net/core/failover.c4
-rw-r--r--net/core/link_watch.c4
-rw-r--r--net/core/neighbour.c18
-rw-r--r--net/core/net-sysfs.c8
-rw-r--r--net/core/netpoll.c4
9 files changed, 36 insertions, 31 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index aba8acc1238c..4420086f3aeb 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6537,6 +6537,7 @@ static __latent_entropy void net_rx_action(struct softirq_action *h)
struct netdev_adjacent {
struct net_device *dev;
+ netdevice_tracker dev_tracker;
/* upper master flag, there can only be one master device per list */
bool master;
@@ -7301,7 +7302,7 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
adj->ref_nr = 1;
adj->private = private;
adj->ignore = false;
- dev_hold(adj_dev);
+ dev_hold_track(adj_dev, &adj->dev_tracker, GFP_KERNEL);
pr_debug("Insert adjacency: dev %s adj_dev %s adj->ref_nr %d; dev_hold on %s\n",
dev->name, adj_dev->name, adj->ref_nr, adj_dev->name);
@@ -7330,8 +7331,8 @@ remove_symlinks:
if (netdev_adjacent_is_neigh_list(dev, adj_dev, dev_list))
netdev_adjacent_sysfs_del(dev, adj_dev->name, dev_list);
free_adj:
+ dev_put_track(adj_dev, &adj->dev_tracker);
kfree(adj);
- dev_put(adj_dev);
return ret;
}
@@ -7372,7 +7373,7 @@ static void __netdev_adjacent_dev_remove(struct net_device *dev,
list_del_rcu(&adj->list);
pr_debug("adjacency: dev_put for %s, because link removed from %s to %s\n",
adj_dev->name, dev->name, adj_dev->name);
- dev_put(adj_dev);
+ dev_put_track(adj_dev, &adj->dev_tracker);
kfree_rcu(adj, rcu);
}
@@ -9864,6 +9865,7 @@ static void netdev_wait_allrefs(struct net_device *dev)
netdev_unregister_timeout_secs * HZ)) {
pr_emerg("unregister_netdevice: waiting for %s to become free. Usage count = %d\n",
dev->name, refcnt);
+ ref_tracker_dir_print(&dev->refcnt_tracker, 10);
warning_time = jiffies;
}
}
@@ -10154,6 +10156,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
dev = PTR_ALIGN(p, NETDEV_ALIGN);
dev->padded = (char *)dev - (char *)p;
+ ref_tracker_dir_init(&dev->refcnt_tracker, 128);
#ifdef CONFIG_PCPU_DEV_REFCNT
dev->pcpu_refcnt = alloc_percpu(int);
if (!dev->pcpu_refcnt)
@@ -10270,6 +10273,7 @@ void free_netdev(struct net_device *dev)
list_for_each_entry_safe(p, n, &dev->napi_list, dev_list)
netif_napi_del(p);
+ ref_tracker_dir_exit(&dev->refcnt_tracker);
#ifdef CONFIG_PCPU_DEV_REFCNT
free_percpu(dev->pcpu_refcnt);
dev->pcpu_refcnt = NULL;
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
index cbab5fec64b1..1d309a666932 100644
--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -313,6 +313,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data,
int err;
struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
const struct net_device_ops *ops;
+ netdevice_tracker dev_tracker;
if (!dev)
return -ENODEV;
@@ -381,10 +382,10 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data,
return -ENODEV;
if (!netif_is_bridge_master(dev))
return -EOPNOTSUPP;
- dev_hold(dev);
+ dev_hold_track(dev, &dev_tracker, GFP_KERNEL);
rtnl_unlock();
err = br_ioctl_call(net, netdev_priv(dev), cmd, ifr, NULL);
- dev_put(dev);
+ dev_put_track(dev, &dev_tracker);
rtnl_lock();
return err;
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 49442cae6f69..3d0ab2eec916 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -850,7 +850,7 @@ net_dm_hw_metadata_copy(const struct devlink_trap_metadata *metadata)
}
hw_metadata->input_dev = metadata->input_dev;
- dev_hold(hw_metadata->input_dev);
+ dev_hold_track(hw_metadata->input_dev, &hw_metadata->dev_tracker, GFP_ATOMIC);
return hw_metadata;
@@ -864,9 +864,9 @@ free_hw_metadata:
}
static void
-net_dm_hw_metadata_free(const struct devlink_trap_metadata *hw_metadata)
+net_dm_hw_metadata_free(struct devlink_trap_metadata *hw_metadata)
{
- dev_put(hw_metadata->input_dev);
+ dev_put_track(hw_metadata->input_dev, &hw_metadata->dev_tracker);
kfree(hw_metadata->fa_cookie);
kfree(hw_metadata->trap_name);
kfree(hw_metadata->trap_group_name);
diff --git a/net/core/dst.c b/net/core/dst.c
index 497ef9b3fc6a..d16c2c9bfebd 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -49,7 +49,7 @@ void dst_init(struct dst_entry *dst, struct dst_ops *ops,
unsigned short flags)
{
dst->dev = dev;
- dev_hold(dev);
+ dev_hold_track(dev, &dst->dev_tracker, GFP_ATOMIC);
dst->ops = ops;
dst_init_metrics(dst, dst_default_metrics.metrics, true);
dst->expires = 0UL;
@@ -117,7 +117,7 @@ struct dst_entry *dst_destroy(struct dst_entry * dst)
if (dst->ops->destroy)
dst->ops->destroy(dst);
- dev_put(dst->dev);
+ dev_put_track(dst->dev, &dst->dev_tracker);
lwtstate_put(dst->lwtstate);
@@ -159,8 +159,8 @@ void dst_dev_put(struct dst_entry *dst)
dst->input = dst_discard;
dst->output = dst_discard_out;
dst->dev = blackhole_netdev;
- dev_hold(dst->dev);
- dev_put(dev);
+ dev_replace_track(dev, blackhole_netdev, &dst->dev_tracker,
+ GFP_ATOMIC);
}
EXPORT_SYMBOL(dst_dev_put);
diff --git a/net/core/failover.c b/net/core/failover.c
index b5cd3c727285..dcaa92a85ea2 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);
diff --git a/net/core/link_watch.c b/net/core/link_watch.c
index 9599afd0862d..d7d089963b1d 100644
--- a/net/core/link_watch.c
+++ b/net/core/link_watch.c
@@ -109,7 +109,7 @@ static void linkwatch_add_event(struct net_device *dev)
spin_lock_irqsave(&lweventlist_lock, flags);
if (list_empty(&dev->link_watch_list)) {
list_add_tail(&dev->link_watch_list, &lweventlist);
- dev_hold(dev);
+ dev_hold_track(dev, &dev->linkwatch_dev_tracker, GFP_ATOMIC);
}
spin_unlock_irqrestore(&lweventlist_lock, flags);
}
@@ -166,7 +166,7 @@ static void linkwatch_do_dev(struct net_device *dev)
netdev_state_change(dev);
}
- dev_put(dev);
+ dev_put_track(dev, &dev->linkwatch_dev_tracker);
}
static void __linkwatch_run_queue(int urgent_only)
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 72ba027c34cf..dd271ffedf11 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) {
@@ -771,10 +771,10 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
write_pnet(&n->net, net);
memcpy(n->key, pkey, key_len);
n->dev = dev;
- dev_hold(dev);
+ dev_hold_track(dev, &n->dev_tracker, GFP_KERNEL);
if (tbl->pconstructor && tbl->pconstructor(n)) {
- dev_put(dev);
+ dev_put_track(dev, &n->dev_tracker);
kfree(n);
n = NULL;
goto out;
@@ -806,7 +806,7 @@ int pneigh_delete(struct neigh_table *tbl, struct net *net, const void *pkey,
write_unlock_bh(&tbl->lock);
if (tbl->pdestructor)
tbl->pdestructor(n);
- dev_put(n->dev);
+ dev_put_track(n->dev, &n->dev_tracker);
kfree(n);
return 0;
}
@@ -839,7 +839,7 @@ static int pneigh_ifdown_and_unlock(struct neigh_table *tbl,
n->next = NULL;
if (tbl->pdestructor)
tbl->pdestructor(n);
- dev_put(n->dev);
+ dev_put_track(n->dev, &n->dev_tracker);
kfree(n);
}
return -ENOENT;
@@ -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);
@@ -1666,13 +1666,13 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
refcount_set(&p->refcnt, 1);
p->reachable_time =
neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
- dev_hold(dev);
+ dev_hold_track(dev, &p->dev_tracker, GFP_KERNEL);
p->dev = dev;
write_pnet(&p->net, net);
p->sysctl_table = NULL;
if (ops->ndo_neigh_setup && ops->ndo_neigh_setup(dev, p)) {
- dev_put(dev);
+ dev_put_track(dev, &p->dev_tracker);
kfree(p);
return NULL;
}
@@ -1703,7 +1703,7 @@ void neigh_parms_release(struct neigh_table *tbl, struct neigh_parms *parms)
list_del(&parms->list);
parms->dead = 1;
write_unlock_bh(&tbl->lock);
- dev_put(parms->dev);
+ dev_put_track(parms->dev, &parms->dev_tracker);
call_rcu(&parms->rcu_head, neigh_rcu_free_parms);
}
EXPORT_SYMBOL(neigh_parms_release);
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index affe34d71d31..3b2cdbbdc858 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1004,7 +1004,7 @@ static void rx_queue_release(struct kobject *kobj)
#endif
memset(kobj, 0, sizeof(*kobj));
- dev_put(queue->dev);
+ dev_put_track(queue->dev, &queue->dev_tracker);
}
static const void *rx_queue_namespace(struct kobject *kobj)
@@ -1044,7 +1044,7 @@ static int rx_queue_add_kobject(struct net_device *dev, int index)
/* Kobject_put later will trigger rx_queue_release call which
* decreases dev refcount: Take that reference here
*/
- dev_hold(queue->dev);
+ dev_hold_track(queue->dev, &queue->dev_tracker, GFP_KERNEL);
kobj->kset = dev->queues_kset;
error = kobject_init_and_add(kobj, &rx_queue_ktype, NULL,
@@ -1607,7 +1607,7 @@ static void netdev_queue_release(struct kobject *kobj)
struct netdev_queue *queue = to_netdev_queue(kobj);
memset(kobj, 0, sizeof(*kobj));
- dev_put(queue->dev);
+ dev_put_track(queue->dev, &queue->dev_tracker);
}
static const void *netdev_queue_namespace(struct kobject *kobj)
@@ -1647,7 +1647,7 @@ static int netdev_queue_add_kobject(struct net_device *dev, int index)
/* Kobject_put later will trigger netdev_queue_release call
* which decreases dev refcount: Take that reference here
*/
- dev_hold(queue->dev);
+ dev_hold_track(queue->dev, &queue->dev_tracker, GFP_KERNEL);
kobj->kset = dev->queues_kset;
error = kobject_init_and_add(kobj, &netdev_queue_ktype, NULL,
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index edfc0f8011f8..db724463e7cd 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -776,7 +776,7 @@ put_noaddr:
err = __netpoll_setup(np, ndev);
if (err)
goto put;
-
+ netdev_tracker_alloc(ndev, &np->dev_tracker, GFP_KERNEL);
rtnl_unlock();
return 0;
@@ -853,7 +853,7 @@ void netpoll_cleanup(struct netpoll *np)
if (!np->dev)
goto out;
__netpoll_cleanup(np);
- dev_put(np->dev);
+ dev_put_track(np->dev, &np->dev_tracker);
np->dev = NULL;
out:
rtnl_unlock();
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-08 20:54:13 +0300