diff options
| author | Eric Dumazet <edumazet@google.com> | 2022-02-08 05:50:36 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-02-09 05:41:35 +0100 |
| commit | ef0de6696c38cbefba64fc1e29c18882bac1f747 (patch) | |
| tree | 7e3d083d9d8e0b0f2fd554a2d8213ec9a74136d8 /net/can/gw.c | |
| parent | ipmr: introduce ipmr_net_exit_batch() (diff) | |
| download | linux-ef0de6696c38cbefba64fc1e29c18882bac1f747.tar.xz linux-ef0de6696c38cbefba64fc1e29c18882bac1f747.zip | |
can: gw: switch cangw_pernet_exit() to batch mode
cleanup_net() is competing with other rtnl users.
Avoiding to acquire rtnl for each netns before calling
cgw_remove_all_jobs() gives chance for cleanup_net()
to progress much faster, holding rtnl a bit longer.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/can/gw.c')
| -rw-r--r-- | net/can/gw.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/net/can/gw.c b/net/can/gw.c index d8861e862f15..24221352e059 100644 --- a/net/can/gw.c +++ b/net/can/gw.c @@ -1239,16 +1239,19 @@ static int __net_init cangw_pernet_init(struct net *net) return 0; } -static void __net_exit cangw_pernet_exit(struct net *net) +static void __net_exit cangw_pernet_exit_batch(struct list_head *net_list) { + struct net *net; + rtnl_lock(); - cgw_remove_all_jobs(net); + list_for_each_entry(net, net_list, exit_list) + cgw_remove_all_jobs(net); rtnl_unlock(); } static struct pernet_operations cangw_pernet_ops = { .init = cangw_pernet_init, - .exit = cangw_pernet_exit, + .exit_batch = cangw_pernet_exit_batch, }; static __init int cgw_module_init(void) |