From 4045e57c19bee150370390545ee8a933b3f7a18d Mon Sep 17 00:00:00 2001 From: Benjamin Thery Date: Wed, 10 Dec 2008 16:27:21 -0800 Subject: netns: ip6mr: declare counter cache_resolve_queue_len per-namespace Preliminary work to make IPv6 multicast forwarding netns-aware. Declare variable cache_resolve_queue_len per-namespace: moves it into struct netns_ipv6. This variable counts the number of unresolved cache entries queued in the list mfc_unres_queue. This list is kept global to all netns as the number of entries per namespace is limited to 10 (hardcoded in routine ip6mr_cache_unresolved). Entries belonging to different namespaces in mfc_unres_queue will be identified by matching the mfc_net member introduced previously in struct mfc6_cache. Keeping this list global to all netns, also allows us to keep a single timer (ipmr_expire_timer) to handle their expiration. In some places cache_resolve_queue_len value was tested for arming or deleting the timer. These tests were equivalent to testing mfc_unres_queue value instead and are replaced in this patch. At the moment, cache_resolve_queue_len is only referenced in init_net. Signed-off-by: Benjamin Thery Signed-off-by: David S. Miller --- include/net/netns/ipv6.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net/netns') diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h index 14c1bbe68a85..30572f3f9781 100644 --- a/include/net/netns/ipv6.h +++ b/include/net/netns/ipv6.h @@ -60,6 +60,7 @@ struct netns_ipv6 { struct mfc6_cache **mfc6_cache_array; struct mif_device *vif6_table; int maxvif; + atomic_t cache_resolve_queue_len; #endif }; #endif -- cgit v1.2.3