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bridge: use exit_batch_rtnl() method

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exit_batch_rtnl() is called while RTNL is held,
and devices to be unregistered can be queued in the dev_kill_list.

This saves one rtnl_lock()/rtnl_unlock() pair per netns
and one unregister_netdevice_many() call.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Antoine Tenart <atenart@kernel.org>
Link: https://lore.kernel.org/r/20240206144313.2050392-16-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2024-02-06 14:43:11 +00:00 committed by Jakub Kicinski
parent 9b5b36374e
commit 806b678507
1 changed files with 5 additions and 10 deletions
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15
net/bridge/br.c
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@ -356,26 +356,21 @@ void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on)
clear_bit(opt, &br->options);
}
static void __net_exit br_net_exit_batch(struct list_head *net_list)
static void __net_exit br_net_exit_batch_rtnl(struct list_head *net_list,
struct list_head *dev_to_kill)
{
struct net_device *dev;
struct net *net;
LIST_HEAD(list);
rtnl_lock();
ASSERT_RTNL();
list_for_each_entry(net, net_list, exit_list)
for_each_netdev(net, dev)
if (netif_is_bridge_master(dev))
br_dev_delete(dev, &list);
unregister_netdevice_many(&list);
rtnl_unlock();
br_dev_delete(dev, dev_to_kill);
}
static struct pernet_operations br_net_ops = {
.exit_batch = br_net_exit_batch,
.exit_batch_rtnl = br_net_exit_batch_rtnl,
};
static const struct stp_proto br_stp_proto = {