diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-14 16:30:30 +0900 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-14 16:30:30 +0900 |
commit | 5e30025a319910695f5010dc0fb53a23299da14d (patch) | |
tree | 4292bcf78de221c7de1774ccf5ad0ac5a9315c26 /net/ipv6/sit.c | |
parent | 7971e23a66c94f1b9bd2d64a3e86dfbfa8c60121 (diff) | |
parent | 90d3839b90fe379557dae4a44735a6af78f42885 (diff) | |
download | linux-5e30025a319910695f5010dc0fb53a23299da14d.tar.bz2 |
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.c | 15 |
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; |