diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h index bf9c23fac74f..022a0fd1a5a4 100644 --- a/include/net/netns/ipv6.h +++ b/include/net/netns/ipv6.h @@ -78,8 +78,8 @@ struct netns_ipv6 { struct dst_ops ip6_dst_ops; rwlock_t fib6_walker_lock; spinlock_t fib6_gc_lock; - atomic_t ip6_rt_gc_expire; - unsigned long ip6_rt_last_gc; + unsigned int ip6_rt_gc_expire; + unsigned long ip6_rt_last_gc; #ifdef CONFIG_IPV6_MULTIPLE_TABLES unsigned int fib6_rules_require_fldissect; bool fib6_has_custom_rules; diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 4657d6a45b22..a14548da0950 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3215,7 +3215,6 @@ static int ip6_dst_gc(struct dst_ops *ops) int rt_elasticity = net->ipv6.sysctl.ip6_rt_gc_elasticity; int rt_gc_timeout = net->ipv6.sysctl.ip6_rt_gc_timeout; unsigned long rt_last_gc = net->ipv6.ip6_rt_last_gc; - unsigned int val; int entries; entries = dst_entries_get_fast(ops); @@ -3226,13 +3225,13 @@ static int ip6_dst_gc(struct dst_ops *ops) entries <= rt_max_size) goto out; - fib6_run_gc(atomic_inc_return(&net->ipv6.ip6_rt_gc_expire), net, true); + net->ipv6.ip6_rt_gc_expire++; + fib6_run_gc(net->ipv6.ip6_rt_gc_expire, net, true); entries = dst_entries_get_slow(ops); if (entries < ops->gc_thresh) - atomic_set(&net->ipv6.ip6_rt_gc_expire, rt_gc_timeout >> 1); + net->ipv6.ip6_rt_gc_expire = rt_gc_timeout>>1; out: - val = atomic_read(&net->ipv6.ip6_rt_gc_expire); - atomic_set(&net->ipv6.ip6_rt_gc_expire, val - (val >> rt_elasticity)); + net->ipv6.ip6_rt_gc_expire -= net->ipv6.ip6_rt_gc_expire>>rt_elasticity; return entries > rt_max_size; } @@ -6288,7 +6287,7 @@ static int __net_init ip6_route_net_init(struct net *net) net->ipv6.sysctl.ip6_rt_min_advmss = IPV6_MIN_MTU - 20 - 40; net->ipv6.sysctl.skip_notify_on_dev_down = 0; - atomic_set(&net->ipv6.ip6_rt_gc_expire, 30*HZ); + net->ipv6.ip6_rt_gc_expire = 30*HZ; ret = 0; out: