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Date: Mon, 7 Feb 2022 09:17:51 -0800 From: Eric Dumazet <eric.dumazet@...il.com> To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org> Cc: netdev <netdev@...r.kernel.org>, David Ahern <dsahern@...nel.org>, Eric Dumazet <edumazet@...gle.com>, Eric Dumazet <eric.dumazet@...il.com> Subject: [PATCH net-next 06/11] ipv6: change fib6_rules_net_exit() to batch mode From: Eric Dumazet <edumazet@...gle.com> 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@...gle.com> Cc: David Ahern <dsahern@...nel.org> --- net/ipv6/fib6_rules.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index ec029c86ae06828c1cfe886ad0f401318b114310..8ad4f49cbe0bb1a31645bbdd4735c69b9b52d8bb 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -486,16 +486,21 @@ 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) -- 2.35.0.263.gb82422642f-goog
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