diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-09-05 13:04:34 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-09-05 13:04:34 +0800 |
| commit | fc600432cd23e35c85de2ff4468d816d6938a112 (patch) | |
| tree | c191c51e4458ec31c1d8254f01e23b2e1574b6f4 /net/core/dst.c | |
| parent | db61550931957ee6c7dba751662919424b4344f3 (diff) | |
| parent | 4cbe5a555fa58a79b6ecbb6c531b8bab0650778d (diff) | |
Merge tag 'v3.6-rc4' into asoc-omap
Linux 3.6-rc4
Diffstat (limited to 'net/core/dst.c')
| -rw-r--r-- | net/core/dst.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/core/dst.c b/net/core/dst.c index 069d51d2941..56d63612e1e 100644 --- a/net/core/dst.c +++ b/net/core/dst.c @@ -149,7 +149,15 @@ int dst_discard(struct sk_buff *skb) } EXPORT_SYMBOL(dst_discard); -const u32 dst_default_metrics[RTAX_MAX]; +const u32 dst_default_metrics[RTAX_MAX + 1] = { + /* This initializer is needed to force linker to place this variable + * into const section. Otherwise it might end into bss section. + * We really want to avoid false sharing on this variable, and catch + * any writes on it. + */ + [RTAX_MAX] = 0xdeadbeef, +}; + void *dst_alloc(struct dst_ops *ops, struct net_device *dev, int initial_ref, int initial_obsolete, unsigned short flags) |