diff options
| author | Stephen Hemminger <shemminger@vyatta.com> | 2011-08-01 16:19:00 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-08-02 04:29:23 -0700 |
| commit | a9b3cd7f323b2e57593e7215362a7b02fc933e3a (patch) | |
| tree | eba1741956aef3015d5b1a07253bf93c4c1bc7df /net/netlabel | |
| parent | 76f793e3a47139d340185cbc1a314740c09b13d3 (diff) | |
| download | lwn-a9b3cd7f323b2e57593e7215362a7b02fc933e3a.tar.gz lwn-a9b3cd7f323b2e57593e7215362a7b02fc933e3a.zip | |
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.c | 6 | ||||
| -rw-r--r-- | net/netlabel/netlabel_unlabeled.c | 6 |
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(); |