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ipv6: change fib6_rules_net_exit() to batch mode 

cleanup_net() is competing with other rtnl users.

fib6_rules_net_exit() seems a good candidate for exit_batch(),
as this gives chance for cleanup_net() to progress much faster,
holding rtnl a bit longer.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2022-02-07 20:50:33 -08:00 committed by Jakub Kicinski
parent 1c69576461
commit ea3e91666d
1 changed files with 8 additions and 3 deletions
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11
net/ipv6/fib6_rules.c
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@ -493,16 +493,21 @@ static int __net_init fib6_rules_net_init(struct net *net)
goto out;
}
static void __net_exit fib6_rules_net_exit(struct net *net)
static void __net_exit fib6_rules_net_exit_batch(struct list_head *net_list)
{
struct net *net;
rtnl_lock();
fib_rules_unregister(net->ipv6.fib6_rules_ops);
list_for_each_entry(net, net_list, exit_list) {
fib_rules_unregister(net->ipv6.fib6_rules_ops);
cond_resched();
}
rtnl_unlock();
}
static struct pernet_operations fib6_rules_net_ops = {
.init = fib6_rules_net_init,
.exit = fib6_rules_net_exit,
.exit_batch = fib6_rules_net_exit_batch,
};
int __init fib6_rules_init(void)