flowcache: Fix resource leaks on namespace exit.
We leak an active timer, the hotcpu notifier and all allocated
resources when we exit a namespace. Fix this by introducing a
flow_cache_fini() function where we release the resources before
we exit.
Fixes: ca925cf1534e ("flowcache: Make flow cache name space aware")
Reported-by: Jakub Kicinski <moorray3@wp.pl>
Tested-by: Jakub Kicinski <moorray3@wp.pl>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/flow.h b/include/net/flow.h
index bee3741..64fd248 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -219,6 +219,7 @@
u8 dir, flow_resolve_t resolver,
void *ctx);
int flow_cache_init(struct net *net);
+void flow_cache_fini(struct net *net);
void flow_cache_flush(struct net *net);
void flow_cache_flush_deferred(struct net *net);