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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-14 16:30:30 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-14 16:30:30 +0900
commit5e30025a319910695f5010dc0fb53a23299da14d (patch)
tree4292bcf78de221c7de1774ccf5ad0ac5a9315c26 /net/ipv6/sit.c
parent7971e23a66c94f1b9bd2d64a3e86dfbfa8c60121 (diff)
parent90d3839b90fe379557dae4a44735a6af78f42885 (diff)
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core locking changes from Ingo Molnar: "The biggest changes: - add lockdep support for seqcount/seqlocks structures, this unearthed both bugs and required extra annotation. - move the various kernel locking primitives to the new kernel/locking/ directory" * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits) block: Use u64_stats_init() to initialize seqcounts locking/lockdep: Mark __lockdep_count_forward_deps() as static lockdep/proc: Fix lock-time avg computation locking/doc: Update references to kernel/mutex.c ipv6: Fix possible ipv6 seqlock deadlock cpuset: Fix potential deadlock w/ set_mems_allowed seqcount: Add lockdep functionality to seqcount/seqlock structures net: Explicitly initialize u64_stats_sync structures for lockdep locking: Move the percpu-rwsem code to kernel/locking/ locking: Move the lglocks code to kernel/locking/ locking: Move the rwsem code to kernel/locking/ locking: Move the rtmutex code to kernel/locking/ locking: Move the semaphore core to kernel/locking/ locking: Move the spinlock code to kernel/locking/ locking: Move the lockdep code to kernel/locking/ locking: Move the mutex code to kernel/locking/ hung_task debugging: Add tracepoint to report the hang x86/locking/kconfig: Update paravirt spinlock Kconfig description lockstat: Report avg wait and hold times lockdep, x86/alternatives: Drop ancient lockdep fixup message ...
Diffstat (limited to 'net/ipv6/sit.c')
-rw-r--r--net/ipv6/sit.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 3a9038dd818d..bfc6fcea3841 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1320,6 +1320,7 @@ static void ipip6_tunnel_setup(struct net_device *dev)
static int ipip6_tunnel_init(struct net_device *dev)
{
struct ip_tunnel *tunnel = netdev_priv(dev);
+ int i;
tunnel->dev = dev;
tunnel->net = dev_net(dev);
@@ -1332,6 +1333,12 @@ static int ipip6_tunnel_init(struct net_device *dev)
if (!dev->tstats)
return -ENOMEM;
+ for_each_possible_cpu(i) {
+ struct pcpu_tstats *ipip6_tunnel_stats;
+ ipip6_tunnel_stats = per_cpu_ptr(dev->tstats, i);
+ u64_stats_init(&ipip6_tunnel_stats->syncp);
+ }
+
return 0;
}
@@ -1341,6 +1348,7 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev)
struct iphdr *iph = &tunnel->parms.iph;
struct net *net = dev_net(dev);
struct sit_net *sitn = net_generic(net, sit_net_id);
+ int i;
tunnel->dev = dev;
tunnel->net = dev_net(dev);
@@ -1354,6 +1362,13 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev)
dev->tstats = alloc_percpu(struct pcpu_tstats);
if (!dev->tstats)
return -ENOMEM;
+
+ for_each_possible_cpu(i) {
+ struct pcpu_tstats *ipip6_fb_stats;
+ ipip6_fb_stats = per_cpu_ptr(dev->tstats, i);
+ u64_stats_init(&ipip6_fb_stats->syncp);
+ }
+
dev_hold(dev);
rcu_assign_pointer(sitn->tunnels_wc[0], tunnel);
return 0;