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| author | Benjamin Thery <benjamin.thery@bull.net> | 2009-01-22 07:56:17 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-01-23 00:57:36 +0300 |
| commit | 5c0a66f5f3c9c59e2c341400048e2cff768e67a9 (patch) | |
| tree | 937c8e34fee423d57bff1cd6dd2bc1f4e80eee44 /include/linux/mroute.h | |
| parent | cf958ae377ee2545ae70cf48d38e7eb4308c27ea (diff) | |
| download | linux-5c0a66f5f3c9c59e2c341400048e2cff768e67a9.tar.xz | |
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/mroute.h')
| -rw-r--r-- | include/linux/mroute.h | 15 |
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 |