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Diffstat (limited to 'net/sched/act_csum.c')
-rw-r--r--net/sched/act_csum.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index 5cc8e407e791..0939e6b2ba4d 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -99,6 +99,7 @@ static int tcf_csum_init(struct net *net, struct nlattr *nla,
goto put_chain;
}
params_new->update_flags = parm->update_flags;
+ params_new->action = parm->action;
spin_lock_bh(&p->tcf_lock);
goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
@@ -580,7 +581,7 @@ TC_INDIRECT_SCOPE int tcf_csum_act(struct sk_buff *skb,
tcf_lastuse_update(&p->tcf_tm);
tcf_action_update_bstats(&p->common, skb);
- action = READ_ONCE(p->tcf_action);
+ action = params->action;
if (unlikely(action == TC_ACT_SHOT))
goto drop;
@@ -631,9 +632,9 @@ drop:
static int tcf_csum_dump(struct sk_buff *skb, struct tc_action *a, int bind,
int ref)
{
+ const struct tcf_csum *p = to_tcf_csum(a);
unsigned char *b = skb_tail_pointer(skb);
- struct tcf_csum *p = to_tcf_csum(a);
- struct tcf_csum_params *params;
+ const struct tcf_csum_params *params;
struct tc_csum opt = {
.index = p->tcf_index,
.refcnt = refcount_read(&p->tcf_refcnt) - ref,
@@ -641,10 +642,9 @@ static int tcf_csum_dump(struct sk_buff *skb, struct tc_action *a, int bind,
};
struct tcf_t t;
- spin_lock_bh(&p->tcf_lock);
- params = rcu_dereference_protected(p->params,
- lockdep_is_held(&p->tcf_lock));
- opt.action = p->tcf_action;
+ rcu_read_lock();
+ params = rcu_dereference(p->params);
+ opt.action = params->action;
opt.update_flags = params->update_flags;
if (nla_put(skb, TCA_CSUM_PARMS, sizeof(opt), &opt))
@@ -653,12 +653,12 @@ static int tcf_csum_dump(struct sk_buff *skb, struct tc_action *a, int bind,
tcf_tm_dump(&t, &p->tcf_tm);
if (nla_put_64bit(skb, TCA_CSUM_TM, sizeof(t), &t, TCA_CSUM_PAD))
goto nla_put_failure;
- spin_unlock_bh(&p->tcf_lock);
+ rcu_read_unlock();
return skb->len;
nla_put_failure:
- spin_unlock_bh(&p->tcf_lock);
+ rcu_read_unlock();
nlmsg_trim(skb, b);
return -1;
}