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| author | Eric Dumazet <edumazet@google.com> | 2024-02-06 14:43:03 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-02-07 18:55:11 -0800 |
| commit | 6eedda01b2bfdcf427b37759e053dc27232f3af1 (patch) | |
| tree | c17188e4815590038f1f4aa62f7b1408045e1655 /drivers/net/gtp.c | |
| parent | f4b57b9dc96bbdb5beb2c93619c7904e4909b366 (diff) | |
| download | lwn-6eedda01b2bfdcf427b37759e053dc27232f3af1.tar.gz lwn-6eedda01b2bfdcf427b37759e053dc27232f3af1.zip | |
gtp: use exit_batch_rtnl() method
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 per netns.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Antoine Tenart <atenart@kernel.org>
Link: https://lore.kernel.org/r/20240206144313.2050392-8-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/gtp.c')
| -rw-r--r-- | drivers/net/gtp.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c index b1919278e931..62c601d9f752 100644 --- a/drivers/net/gtp.c +++ b/drivers/net/gtp.c @@ -1876,23 +1876,23 @@ static int __net_init gtp_net_init(struct net *net) return 0; } -static void __net_exit gtp_net_exit(struct net *net) +static void __net_exit gtp_net_exit_batch_rtnl(struct list_head *net_list, + struct list_head *dev_to_kill) { - struct gtp_net *gn = net_generic(net, gtp_net_id); - struct gtp_dev *gtp; - LIST_HEAD(list); + struct net *net; - rtnl_lock(); - list_for_each_entry(gtp, &gn->gtp_dev_list, list) - gtp_dellink(gtp->dev, &list); + list_for_each_entry(net, net_list, exit_list) { + struct gtp_net *gn = net_generic(net, gtp_net_id); + struct gtp_dev *gtp; - unregister_netdevice_many(&list); - rtnl_unlock(); + list_for_each_entry(gtp, &gn->gtp_dev_list, list) + gtp_dellink(gtp->dev, dev_to_kill); + } } static struct pernet_operations gtp_net_ops = { .init = gtp_net_init, - .exit = gtp_net_exit, + .exit_batch_rtnl = gtp_net_exit_batch_rtnl, .id = >p_net_id, .size = sizeof(struct gtp_net), }; |