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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2012-01-12 05:41:32 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-01-12 21:26:56 +0100 |
| commit | cf778b00e96df6d64f8e21b8395d1f8a859ecdc7 (patch) | |
| tree | 4cc157d564bd65d687bdf722af3202e9e277ea98 /net/netlabel/netlabel_unlabeled.c | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linvil... (diff) | |
| download | linux-cf778b00e96df6d64f8e21b8395d1f8a859ecdc7.tar.xz linux-cf778b00e96df6d64f8e21b8395d1f8a859ecdc7.zip | |
net: reintroduce missing rcu_assign_pointer() calls
commit a9b3cd7f32 (rcu: convert uses of rcu_assign_pointer(x, NULL) to
RCU_INIT_POINTER) did a lot of incorrect changes, since it did a
complete conversion of rcu_assign_pointer(x, y) to RCU_INIT_POINTER(x,
y).
We miss needed barriers, even on x86, when y is not NULL.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Stephen Hemminger <shemminger@vyatta.com>
CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlabel/netlabel_unlabeled.c')
| -rw-r--r-- | net/netlabel/netlabel_unlabeled.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c index 4b5fa0fe78fd..e7ff694f1049 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_INIT_POINTER(netlbl_unlhsh_def, iface); + rcu_assign_pointer(netlbl_unlhsh_def, iface); } spin_unlock(&netlbl_unlhsh_lock); @@ -1447,11 +1447,9 @@ int __init netlbl_unlabel_init(u32 size) for (iter = 0; iter < hsh_tbl->size; iter++) INIT_LIST_HEAD(&hsh_tbl->tbl[iter]); - rcu_read_lock(); spin_lock(&netlbl_unlhsh_lock); - RCU_INIT_POINTER(netlbl_unlhsh, hsh_tbl); + rcu_assign_pointer(netlbl_unlhsh, hsh_tbl); spin_unlock(&netlbl_unlhsh_lock); - rcu_read_unlock(); register_netdevice_notifier(&netlbl_unlhsh_netdev_notifier); |