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authorStephen Hemminger <shemminger@vyatta.com>2011-08-01 16:19:00 +0000
committerDavid S. Miller <davem@davemloft.net>2011-08-02 04:29:23 -0700
commita9b3cd7f323b2e57593e7215362a7b02fc933e3a (patch)
treeeba1741956aef3015d5b1a07253bf93c4c1bc7df /net/netlabel
parent76f793e3a47139d340185cbc1a314740c09b13d3 (diff)
downloadlinux-stericsson-a9b3cd7f323b2e57593e7215362a7b02fc933e3a.tar.gz
rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER
When assigning a NULL value to an RCU protected pointer, no barrier is needed. The rcu_assign_pointer, used to handle that but will soon change to not handle the special case. Convert all rcu_assign_pointer of NULL value. //smpl @@ expression P; @@ - rcu_assign_pointer(P, NULL) + RCU_INIT_POINTER(P, NULL) // </smpl> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlabel')
-rw-r--r--net/netlabel/netlabel_domainhash.c6
-rw-r--r--net/netlabel/netlabel_unlabeled.c6
2 files changed, 6 insertions, 6 deletions
diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c
index 2aa975e5452d..c0594cdfe617 100644
--- a/net/netlabel/netlabel_domainhash.c
+++ b/net/netlabel/netlabel_domainhash.c
@@ -282,7 +282,7 @@ int __init netlbl_domhsh_init(u32 size)
INIT_LIST_HEAD(&hsh_tbl->tbl[iter]);
spin_lock(&netlbl_domhsh_lock);
- rcu_assign_pointer(netlbl_domhsh, hsh_tbl);
+ RCU_INIT_POINTER(netlbl_domhsh, hsh_tbl);
spin_unlock(&netlbl_domhsh_lock);
return 0;
@@ -330,7 +330,7 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry,
&rcu_dereference(netlbl_domhsh)->tbl[bkt]);
} else {
INIT_LIST_HEAD(&entry->list);
- rcu_assign_pointer(netlbl_domhsh_def, entry);
+ RCU_INIT_POINTER(netlbl_domhsh_def, entry);
}
if (entry->type == NETLBL_NLTYPE_ADDRSELECT) {
@@ -451,7 +451,7 @@ int netlbl_domhsh_remove_entry(struct netlbl_dom_map *entry,
if (entry != rcu_dereference(netlbl_domhsh_def))
list_del_rcu(&entry->list);
else
- rcu_assign_pointer(netlbl_domhsh_def, NULL);
+ RCU_INIT_POINTER(netlbl_domhsh_def, NULL);
} else
ret_val = -ENOENT;
spin_unlock(&netlbl_domhsh_lock);
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index f1ecf848e3ac..5a587cf6c86f 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -354,7 +354,7 @@ static struct netlbl_unlhsh_iface *netlbl_unlhsh_add_iface(int ifindex)
INIT_LIST_HEAD(&iface->list);
if (netlbl_unlhsh_rcu_deref(netlbl_unlhsh_def) != NULL)
goto add_iface_failure;
- rcu_assign_pointer(netlbl_unlhsh_def, iface);
+ RCU_INIT_POINTER(netlbl_unlhsh_def, iface);
}
spin_unlock(&netlbl_unlhsh_lock);
@@ -621,7 +621,7 @@ static void netlbl_unlhsh_condremove_iface(struct netlbl_unlhsh_iface *iface)
if (iface->ifindex > 0)
list_del_rcu(&iface->list);
else
- rcu_assign_pointer(netlbl_unlhsh_def, NULL);
+ RCU_INIT_POINTER(netlbl_unlhsh_def, NULL);
spin_unlock(&netlbl_unlhsh_lock);
call_rcu(&iface->rcu, netlbl_unlhsh_free_iface);
@@ -1449,7 +1449,7 @@ int __init netlbl_unlabel_init(u32 size)
rcu_read_lock();
spin_lock(&netlbl_unlhsh_lock);
- rcu_assign_pointer(netlbl_unlhsh, hsh_tbl);
+ RCU_INIT_POINTER(netlbl_unlhsh, hsh_tbl);
spin_unlock(&netlbl_unlhsh_lock);
rcu_read_unlock();