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authorBenjamin Thery <benjamin.thery@bull.net>2009-01-22 04:56:17 +0000
committerDavid S. Miller <davem@davemloft.net>2009-01-22 13:57:36 -0800
commit5c0a66f5f3c9c59e2c341400048e2cff768e67a9 (patch)
tree937c8e34fee423d57bff1cd6dd2bc1f4e80eee44 /include/linux
parentcf958ae377ee2545ae70cf48d38e7eb4308c27ea (diff)
downloadblackbird-op-linux-5c0a66f5f3c9c59e2c341400048e2cff768e67a9.tar.gz
blackbird-op-linux-5c0a66f5f3c9c59e2c341400048e2cff768e67a9.zip
netns: ipmr: store netns in struct mfc_cache
This patch stores into struct mfc_cache the network namespace each mfc_cache belongs to. The new member is mfc_net. mfc_net is assigned at cache allocation and doesn't change during the rest of the cache entry life. A new net parameter is added to ipmr_cache_alloc/ipmr_cache_alloc_unres. This will help to retrieve the current netns around the IPv4 multicast routing code. At the moment, all mfc_cache are allocated in init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/mroute.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index 8a455694d682..beaf3aae8aaf 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -193,6 +193,9 @@ struct vif_device
struct mfc_cache
{
struct mfc_cache *next; /* Next entry on cache line */
+#ifdef CONFIG_NET_NS
+ struct net *mfc_net;
+#endif
__be32 mfc_mcastgrp; /* Group the entry belongs to */
__be32 mfc_origin; /* Source of packet */
vifi_t mfc_parent; /* Source interface */
@@ -215,6 +218,18 @@ struct mfc_cache
} mfc_un;
};
+static inline
+struct net *mfc_net(const struct mfc_cache *mfc)
+{
+ return read_pnet(&mfc->mfc_net);
+}
+
+static inline
+void mfc_net_set(struct mfc_cache *mfc, struct net *net)
+{
+ write_pnet(&mfc->mfc_net, hold_net(net));
+}
+
#define MFC_STATIC 1
#define MFC_NOTIFY 2
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