diff options
| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2011-11-23 07:09:32 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-11-23 18:48:19 -0500 |
| commit | 2cfa5a0471fef43fda0b7bd87e3a5e4dbadb7809 (patch) | |
| tree | 0603cf740823a45337e2b82ba63bae96a6e75186 /net/core | |
| parent | netprio_cgroup: Fix build break (diff) | |
| download | linux-dev-2cfa5a0471fef43fda0b7bd87e3a5e4dbadb7809.tar.xz linux-dev-2cfa5a0471fef43fda0b7bd87e3a5e4dbadb7809.zip | |
net: treewide use of RCU_INIT_POINTER
rcu_assign_pointer(ptr, NULL) can be safely replaced by
RCU_INIT_POINTER(ptr, NULL)
(old rcu_assign_pointer() macro was testing the NULL value and could
omit the smp_wmb(), but this had to be removed because of compiler
warnings)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/netprio_cgroup.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c index 72ad0bc6841e..3a9fd4826b75 100644 --- a/net/core/netprio_cgroup.c +++ b/net/core/netprio_cgroup.c @@ -285,7 +285,7 @@ static int netprio_device_event(struct notifier_block *unused, break; case NETDEV_UNREGISTER: old = rtnl_dereference(dev->priomap); - rcu_assign_pointer(dev->priomap, NULL); + RCU_INIT_POINTER(dev->priomap, NULL); if (old) kfree_rcu(old, rcu); break; @@ -332,7 +332,7 @@ static void __exit exit_cgroup_netprio(void) rtnl_lock(); for_each_netdev(&init_net, dev) { old = rtnl_dereference(dev->priomap); - rcu_assign_pointer(dev->priomap, NULL); + RCU_INIT_POINTER(dev->priomap, NULL); if (old) kfree_rcu(old, rcu); } |