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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2012-01-12 04:41:32 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-01-12 12:26:56 -0800 |
| commit | cf778b00e96df6d64f8e21b8395d1f8a859ecdc7 (patch) | |
| tree | 4cc157d564bd65d687bdf722af3202e9e277ea98 /net/decnet/dn_dev.c | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless (diff) | |
| download | linux-dev-cf778b00e96df6d64f8e21b8395d1f8a859ecdc7.tar.xz linux-dev-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 '')
| -rw-r--r-- | net/decnet/dn_dev.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c index 2ab16e12520c..74d321a60e7b 100644 --- a/net/decnet/dn_dev.c +++ b/net/decnet/dn_dev.c @@ -388,7 +388,7 @@ static int dn_dev_insert_ifa(struct dn_dev *dn_db, struct dn_ifaddr *ifa) } ifa->ifa_next = dn_db->ifa_list; - RCU_INIT_POINTER(dn_db->ifa_list, ifa); + rcu_assign_pointer(dn_db->ifa_list, ifa); dn_ifaddr_notify(RTM_NEWADDR, ifa); blocking_notifier_call_chain(&dnaddr_chain, NETDEV_UP, ifa); @@ -1093,7 +1093,7 @@ static struct dn_dev *dn_dev_create(struct net_device *dev, int *err) memcpy(&dn_db->parms, p, sizeof(struct dn_dev_parms)); - RCU_INIT_POINTER(dev->dn_ptr, dn_db); + rcu_assign_pointer(dev->dn_ptr, dn_db); dn_db->dev = dev; init_timer(&dn_db->timer); |