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| author | Ido Schimmel <idosch@mellanox.com> | 2017-08-03 13:28:25 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-03 15:36:00 -0700 |
| commit | a460aa83963b185a32a6377eb486b6e613ac8e38 (patch) | |
| tree | 03992757839f1f03ae32475f966e300f7addf432 /net/ipv6/ip6_fib.c | |
| parent | fc882fcff1ee774cb6be9d3c714ae5ab9eec5aa4 (diff) | |
| download | linux-a460aa83963b185a32a6377eb486b6e613ac8e38.tar.bz2 | |
ipv6: fib: Add helpers to hold / drop a reference on rt6_info
Similar to commit 1c677b3d2828 ("ipv4: fib: Add fib_info_hold() helper")
and commit b423cb10807b ("ipv4: fib: Export free_fib_info()") add an
helper to hold a reference on rt6_info and export rt6_release() to drop
it and potentially release the route.
This is needed so that drivers capable of FIB offload could hold a
reference on the route before queueing it for offload and drop it after
the route has been programmed to the device's tables.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_fib.c')
| -rw-r--r-- | net/ipv6/ip6_fib.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index fe193b48ef61..69ed0043d117 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -154,7 +154,7 @@ static void node_free(struct fib6_node *fn) kmem_cache_free(fib6_node_kmem, fn); } -static void rt6_free_pcpu(struct rt6_info *non_pcpu_rt) +void rt6_free_pcpu(struct rt6_info *non_pcpu_rt) { int cpu; @@ -177,15 +177,7 @@ static void rt6_free_pcpu(struct rt6_info *non_pcpu_rt) free_percpu(non_pcpu_rt->rt6i_pcpu); non_pcpu_rt->rt6i_pcpu = NULL; } - -static void rt6_release(struct rt6_info *rt) -{ - if (atomic_dec_and_test(&rt->rt6i_ref)) { - rt6_free_pcpu(rt); - dst_dev_put(&rt->dst); - dst_release(&rt->dst); - } -} +EXPORT_SYMBOL_GPL(rt6_free_pcpu); static void fib6_link_table(struct net *net, struct fib6_table *tb) { |