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ipv6: addrconf: do not block BH in ipv6_get_ifaddr() 

rcu_read_lock() is enough here, no need to block BH.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2017-10-23 16:17:49 -07:00 committed by David S. Miller
parent 480318a0a4
commit 24f226da96
1 changed files with 3 additions and 3 deletions
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6
net/ipv6/addrconf.c
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@ -1922,8 +1922,8 @@ struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *add
unsigned int hash = inet6_addr_hash(net, addr);
struct inet6_ifaddr *ifp, *result = NULL;
rcu_read_lock_bh();
hlist_for_each_entry_rcu_bh(ifp, &inet6_addr_lst[hash], addr_lst) {
rcu_read_lock();
hlist_for_each_entry_rcu(ifp, &inet6_addr_lst[hash], addr_lst) {
if (!net_eq(dev_net(ifp->idev->dev), net))
continue;
if (ipv6_addr_equal(&ifp->addr, addr)) {
@ -1935,7 +1935,7 @@ struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *add
}
}
}
rcu_read_unlock_bh();
rcu_read_unlock();
return result;
}