From 2e75bb2f8b8928aa01d91219a90df1e6fbc7cdd4 Mon Sep 17 00:00:00 2001 From: Kirill Tkhai Date: Thu, 1 Mar 2018 14:30:17 +0300 Subject: [PATCH] net: Convert hwsim_net_ops These pernet_operations allocate and destroy IDA identifier, and these actions are synchronized by IDA subsystem locks. Exit method removes mac80211_hwsim_data enteries from the lists, and this is synchronized by hwsim_radio_lock with the rest parallel pernet_operations. Also it queues destroy_radio() work, and these work already may be executed in parallel with any pernet_operations (as it's a work :). So, we may mark these pernet_operations as async. Signed-off-by: Kirill Tkhai Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 45ba846bc285..7b6c3640a94f 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -3541,6 +3541,7 @@ static struct pernet_operations hwsim_net_ops = { .exit = hwsim_exit_net, .id = &hwsim_net_id, .size = sizeof(struct hwsim_net), + .async = true, }; static void hwsim_exit_netlink(void)