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nexthop: change nexthop_net_exit() to nexthop_net_exit_batch() 

cleanup_net() is competing with other rtnl users.

nexthop_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 20:50:31 -08:00 committed by Jakub Kicinski
parent e66d117222
commit fea7b20132
1 changed files with 8 additions and 4 deletions
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12
net/ipv4/nexthop.c
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@ -3733,12 +3733,16 @@ out:
}
EXPORT_SYMBOL(nexthop_res_grp_activity_update);
static void __net_exit nexthop_net_exit(struct net *net)
static void __net_exit nexthop_net_exit_batch(struct list_head *net_list)
{
struct net *net;
rtnl_lock();
flush_all_nexthops(net);
list_for_each_entry(net, net_list, exit_list) {
flush_all_nexthops(net);
kfree(net->nexthop.devhash);
}
rtnl_unlock();
kfree(net->nexthop.devhash);
}
static int __net_init nexthop_net_init(struct net *net)
@ -3756,7 +3760,7 @@ static int __net_init nexthop_net_init(struct net *net)
static struct pernet_operations nexthop_net_ops = {
.init = nexthop_net_init,
.exit = nexthop_net_exit,
.exit_batch = nexthop_net_exit_batch,
};
static int __init nexthop_init(void)