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authorEric Dumazet <edumazet@google.com>2017-10-08 04:30:26 +0200
committerDavid S. Miller <davem@davemloft.net>2017-10-09 06:16:30 +0200
commit24ba333b2c1a609fc17214ceb215e19bd9d54951 (patch)
treefa28683fd560a0c488a7347164294883b706080c /net/ipv6
parentipv6: ipv6_chk_custom_prefix() rcu conversion (diff)
downloadlinux-24ba333b2c1a609fc17214ceb215e19bd9d54951.tar.xz
linux-24ba333b2c1a609fc17214ceb215e19bd9d54951.zip
ipv6: ipv6_chk_prefix() rcu conversion
Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/addrconf.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 33ee84c2512b..ea63442209bf 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1880,22 +1880,20 @@ EXPORT_SYMBOL(ipv6_chk_custom_prefix);
int ipv6_chk_prefix(const struct in6_addr *addr, struct net_device *dev)
{
- struct inet6_dev *idev;
- struct inet6_ifaddr *ifa;
+ const struct inet6_ifaddr *ifa;
+ const struct inet6_dev *idev;
int onlink;
onlink = 0;
rcu_read_lock();
idev = __in6_dev_get(dev);
if (idev) {
- read_lock_bh(&idev->lock);
- list_for_each_entry(ifa, &idev->addr_list, if_list) {
+ list_for_each_entry_rcu(ifa, &idev->addr_list, if_list) {
onlink = ipv6_prefix_equal(addr, &ifa->addr,
ifa->prefix_len);
if (onlink)
break;
}
- read_unlock_bh(&idev->lock);
}
rcu_read_unlock();
return onlink;