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authorAlexey Dobriyan <adobriyan@gmail.com>2008-10-28 13:25:09 -0700
committerDavid S. Miller <davem@davemloft.net>2008-10-28 13:25:09 -0700
commit93adcc80f3288f1827baf6f821af818f6eeef7f9 (patch)
treed53faa5267421764ebe8f1d5e83e6eb5bb7ddea6
parentdef8b4faff5ca349beafbbfeb2c51f3602a6ef3a (diff)
downloadlinux-93adcc80f3288f1827baf6f821af818f6eeef7f9.tar.bz2
net: don't use INIT_RCU_HEAD
call_rcu() will unconditionally rewrite RCU head anyway. Applies to struct neigh_parms struct neigh_table struct net struct cipso_v4_doi struct in_ifaddr struct in_device rt->u.dst Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/core/neighbour.c2
-rw-r--r--net/core/net_namespace.c2
-rw-r--r--net/ipv4/cipso_ipv4.c1
-rw-r--r--net/ipv4/devinet.c9
-rw-r--r--net/ipv4/route.c1
5 files changed, 1 insertions, 14 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 1dc728b38589..b337a937ea52 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1340,7 +1340,6 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
if (p) {
p->tbl = tbl;
atomic_set(&p->refcnt, 1);
- INIT_RCU_HEAD(&p->rcu_head);
p->reachable_time =
neigh_rand_reach_time(p->base_reachable_time);
@@ -1412,7 +1411,6 @@ void neigh_table_init_no_netlink(struct neigh_table *tbl)
tbl->parms.net = &init_net;
#endif
atomic_set(&tbl->parms.refcnt, 1);
- INIT_RCU_HEAD(&tbl->parms.rcu_head);
tbl->parms.reachable_time =
neigh_rand_reach_time(tbl->parms.base_reachable_time);
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index f1d07b5c1e17..861b4cbf40db 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -47,7 +47,6 @@ static __net_init int setup_net(struct net *net)
goto out;
ng->len = INITIAL_NET_GEN_PTRS;
- INIT_RCU_HEAD(&ng->rcu);
rcu_assign_pointer(net->gen, ng);
error = 0;
@@ -446,7 +445,6 @@ int net_assign_generic(struct net *net, int id, void *data)
*/
ng->len = id;
- INIT_RCU_HEAD(&ng->rcu);
memcpy(&ng->ptr, &old_ng->ptr, old_ng->len);
rcu_assign_pointer(net->gen, ng);
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 490e035c6d90..4bcec7f77251 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -490,7 +490,6 @@ int cipso_v4_doi_add(struct cipso_v4_doi *doi_def)
}
atomic_set(&doi_def->refcount, 1);
- INIT_RCU_HEAD(&doi_def->rcu);
spin_lock(&cipso_v4_doi_list_lock);
if (cipso_v4_doi_search(doi_def->doi) != NULL)
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 56fce3ab6c55..0bff576d2918 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -112,13 +112,7 @@ static inline void devinet_sysctl_unregister(struct in_device *idev)
static struct in_ifaddr *inet_alloc_ifa(void)
{
- struct in_ifaddr *ifa = kzalloc(sizeof(*ifa), GFP_KERNEL);
-
- if (ifa) {
- INIT_RCU_HEAD(&ifa->rcu_head);
- }
-
- return ifa;
+ return kzalloc(sizeof(struct in_ifaddr), GFP_KERNEL);
}
static void inet_rcu_free_ifa(struct rcu_head *head)
@@ -161,7 +155,6 @@ static struct in_device *inetdev_init(struct net_device *dev)
in_dev = kzalloc(sizeof(*in_dev), GFP_KERNEL);
if (!in_dev)
goto out;
- INIT_RCU_HEAD(&in_dev->rcu_head);
memcpy(&in_dev->cnf, dev_net(dev)->ipv4.devconf_dflt,
sizeof(in_dev->cnf));
in_dev->cnf.sysctl = NULL;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index ffb2c5705432..e59b4dcf6778 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1386,7 +1386,6 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
/* Copy all the information. */
*rt = *rth;
- INIT_RCU_HEAD(&rt->u.dst.rcu_head);
rt->u.dst.__use = 1;
atomic_set(&rt->u.dst.__refcnt, 1);
rt->u.dst.child = NULL;