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| author | Michael S. Tsirkin <mst@mellanox.co.il> | 2006-03-20 22:25:41 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-03-20 22:25:41 -0800 |
| commit | c5ecd62c25400a3c6856e009f84257d5bd03f03b (patch) | |
| tree | a0aeb88552772396bba986cce176028348ec041f /include/net/neighbour.h | |
| parent | 53dcb0e38c1786aa82ada4641b4607be315b610a (diff) | |
| download | lwn-c5ecd62c25400a3c6856e009f84257d5bd03f03b.tar.gz lwn-c5ecd62c25400a3c6856e009f84257d5bd03f03b.zip | |
[NET]: Move destructor from neigh->ops to neigh_params
struct neigh_ops currently has a destructor field, which no in-kernel
drivers outside of infiniband use. The infiniband/ulp/ipoib in-tree
driver stashes some info in the neighbour structure (the results of
the second-stage lookup from ARP results to real link-level path), and
it uses neigh->ops->destructor to get a callback so it can clean up
this extra info when a neighbour is freed. We've run into problems
with this: since the destructor is in an ops field that is shared
between neighbours that may belong to different net devices, there's
no way to set/clear it safely.
The following patch moves this field to neigh_parms where it can be
safely set, together with its twin neigh_setup. Two additional
patches in the patch series update ipoib to use this new interface.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/neighbour.h')
| -rw-r--r-- | include/net/neighbour.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h index 6fa9ae190741..b0666d66293f 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -68,6 +68,7 @@ struct neigh_parms struct net_device *dev; struct neigh_parms *next; int (*neigh_setup)(struct neighbour *); + void (*neigh_destructor)(struct neighbour *); struct neigh_table *tbl; void *sysctl_table; @@ -145,7 +146,6 @@ struct neighbour struct neigh_ops { int family; - void (*destructor)(struct neighbour *); void (*solicit)(struct neighbour *, struct sk_buff*); void (*error_report)(struct neighbour *, struct sk_buff*); int (*output)(struct sk_buff*); |