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net: sched: extend proto ops with 'put' callback

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Add optional tp->ops->put() API to be implemented for filter reference
counting. This new function is called by cls API to release filter
reference for filters returned by tp->ops->change() or tp->ops->get()
functions. Implement tfilter_put() helper to call tp->ops->put() only for
classifiers that implement it.

Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Buslov
2019-02-11 10:55:44 +02:00
committed by David S. Miller
parent ec6743a109
commit 7d5509fa0d
2 changed files with 12 additions and 1 deletions
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include/net/sch_generic.h
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@@ -277,6 +277,7 @@ struct tcf_proto_ops {
struct netlink_ext_ack *extack);
void* (*get)(struct tcf_proto*, u32 handle);
void (*put)(struct tcf_proto *tp, void *f);
int (*change)(struct net *net, struct sk_buff *,
struct tcf_proto*, unsigned long,
u32 handle, struct nlattr **,