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| author | WANG Cong <xiyou.wangcong@gmail.com> | 2014-05-06 11:15:56 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-08 22:56:56 -0400 |
| commit | 32a4be48907b930606f8736caa15c812af802227 (patch) | |
| tree | bb39bdbdd14525746e9663f616c783464654c8d0 /net/ipv4/devinet.c | |
| parent | f398a77177716137cceda2f00901f54413677869 (diff) | |
| download | linux-32a4be48907b930606f8736caa15c812af802227.tar.gz linux-32a4be48907b930606f8736caa15c812af802227.tar.bz2 linux-32a4be48907b930606f8736caa15c812af802227.zip | |
ipv4: remove inet_addr_hash_lock in devinet.c
All the callers hold RTNL lock, so there is no need to use inet_addr_hash_lock
to protect the hash list.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/devinet.c')
| -rw-r--r-- | net/ipv4/devinet.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index bdbf68bb2e2d..78692e46b64f 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -106,7 +106,6 @@ static const struct nla_policy ifa_ipv4_policy[IFA_MAX+1] = { #define IN4_ADDR_HSIZE (1U << IN4_ADDR_HSIZE_SHIFT) static struct hlist_head inet_addr_lst[IN4_ADDR_HSIZE]; -static DEFINE_SPINLOCK(inet_addr_hash_lock); static u32 inet_addr_hash(struct net *net, __be32 addr) { @@ -119,16 +118,14 @@ static void inet_hash_insert(struct net *net, struct in_ifaddr *ifa) { u32 hash = inet_addr_hash(net, ifa->ifa_local); - spin_lock(&inet_addr_hash_lock); + ASSERT_RTNL(); hlist_add_head_rcu(&ifa->hash, &inet_addr_lst[hash]); - spin_unlock(&inet_addr_hash_lock); } static void inet_hash_remove(struct in_ifaddr *ifa) { - spin_lock(&inet_addr_hash_lock); + ASSERT_RTNL(); hlist_del_init_rcu(&ifa->hash); - spin_unlock(&inet_addr_hash_lock); } /** |