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authorMichael S. Tsirkin <mst@mellanox.co.il>2006-03-21 06:25:41 (GMT)
committerDavid S. Miller <davem@davemloft.net>2006-03-21 06:25:41 (GMT)
commitc5ecd62c25400a3c6856e009f84257d5bd03f03b (patch)
treea0aeb88552772396bba986cce176028348ec041f /net
parent53dcb0e38c1786aa82ada4641b4607be315b610a (diff)
downloadlinux-c5ecd62c25400a3c6856e009f84257d5bd03f03b.tar.xz
[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 'net')
-rw-r--r--net/core/neighbour.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 6ba1cde..0c86668 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -586,8 +586,8 @@ void neigh_destroy(struct neighbour *neigh)
kfree(hh);
}
- if (neigh->ops && neigh->ops->destructor)
- (neigh->ops->destructor)(neigh);
+ if (neigh->parms->neigh_destructor)
+ (neigh->parms->neigh_destructor)(neigh);
skb_queue_purge(&neigh->arp_queue);