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| author |   David S. Miller <davem@davemloft.net> | 2012-07-31 15:06:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-31 15:06:50 -0700 |
| commit | caacf05e5ad1abf0a2864863da4e33024bc68ec6 (patch) | |
| tree | 9a82e97a072e288f604bd3dbbe07e1796581fad0 /include/net/route.h | |
| parent | ipv4: Cache routes in nexthop exception entries. (diff) | |
| download | linux-dev-caacf05e5ad1abf0a2864863da4e33024bc68ec6.tar.xz linux-dev-caacf05e5ad1abf0a2864863da4e33024bc68ec6.zip | |
ipv4: Properly purge netdev references on uncached routes.
When a device is unregistered, we have to purge all of the
references to it that may exist in the entire system.
If a route is uncached, we currently have no way of accomplishing
this.
So create a global list that is scanned when a network device goes
down. This mirrors the logic in net/core/dst.c's dst_ifdown().
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/route.h')
| -rw-r--r-- | include/net/route.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/route.h b/include/net/route.h index 8c52bc6f1c90..776a27f1ab78 100644 --- a/include/net/route.h +++ b/include/net/route.h @@ -57,6 +57,8 @@ struct rtable { /* Miscellaneous cached information */ u32 rt_pmtu; + + struct list_head rt_uncached; }; static inline bool rt_is_input_route(const struct rtable *rt) @@ -107,6 +109,7 @@ extern struct ip_rt_acct __percpu *ip_rt_acct; struct in_device; extern int ip_rt_init(void); extern void rt_cache_flush(struct net *net, int how); +extern void rt_flush_dev(struct net_device *dev); extern struct rtable *__ip_route_output_key(struct net *, struct flowi4 *flp); extern struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp, struct sock *sk); |