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authorDaniel Borkmann <dborkman@redhat.com>2013-04-09 03:47:16 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-09 13:12:23 -0400
commit617fe29d45bdfffba2739e6512c83e766e6ae72c (patch)
tree8eb3d331f1c042893a990af3ee48e2aab4061fef /include/net/if_inet6.h
parentfc403832f7bd94014fe3d965e0652a857160f1c9 (diff)
net: ipv6: only invalidate previously tokenized addresses
Instead of invalidating all IPv6 addresses with global scope when one decides to use IPv6 tokens, we should only invalidate previous tokens and leave the rest intact until they expire eventually (or are intact forever). For doing this less greedy approach, we're adding a bool at the end of inet6_ifaddr structure instead, for two reasons: i) per-inet6_ifaddr flag space is already used up, making it wider might not be a good idea, since ii) also we do not necessarily need to export this information into user space. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/if_inet6.h')
-rw-r--r--include/net/if_inet6.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index f1063d62cd1..100fb8cec17 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -71,6 +71,8 @@ struct inet6_ifaddr {
struct inet6_ifaddr *ifpub;
int regen_count;
#endif
+ bool tokenized;
+
struct rcu_head rcu;
};