Merge branch 'sch-action-tstamp'

Jamal Hadi Salim says:

====================
net sched action timestamp improvements

Various aggregations of duplicated code, fixes and introduction of firstused
timestamp

v2: add const for source time info per suggestion from Cong
====================

Signed-off-by: David S. Miller <[e-mail]>

include/net/act_api.h

···
 
 	if (tm->lastuse != now)
 		tm->lastuse = now;
+	if (unlikely(!tm->firstuse))
+		tm->firstuse = now;
+}
+
+static inline void tcf_tm_dump(struct tcf_t *dtm, const struct tcf_t *stm)
+{
+	dtm->install = jiffies_to_clock_t(jiffies - stm->install);
+	dtm->lastuse = jiffies_to_clock_t(jiffies - stm->lastuse);
+	dtm->firstuse = jiffies_to_clock_t(jiffies - stm->firstuse);
+	dtm->expires = jiffies_to_clock_t(stm->expires);
 }
 
 struct tc_action {

include/uapi/linux/pkt_cls.h

···
 	__u64   install;
 	__u64   lastuse;
 	__u64   expires;
+	__u64   firstuse;
 };
 
 struct tc_cnt {

net/sched/act_api.c

···
 	p->tcfc_index = index ? index : tcf_hash_new_index(tn);
 	p->tcfc_tm.install = jiffies;
 	p->tcfc_tm.lastuse = jiffies;
+	p->tcfc_tm.firstuse = 0;
 	if (est) {
 		err = gen_new_estimator(&p->tcfc_bstats, p->cpu_bstats,
 					&p->tcfc_rate_est,

net/sched/act_bpf.c

···
 	if (ret)
 		goto nla_put_failure;
 
-	tm.install = jiffies_to_clock_t(jiffies - prog->tcf_tm.install);
-	tm.lastuse = jiffies_to_clock_t(jiffies - prog->tcf_tm.lastuse);
-	tm.expires = jiffies_to_clock_t(prog->tcf_tm.expires);
-
+	tcf_tm_dump(&tm, &prog->tcf_tm);
 	if (nla_put_64bit(skb, TCA_ACT_BPF_TM, sizeof(tm), &tm,
 			  TCA_ACT_BPF_PAD))
 		goto nla_put_failure;

net/sched/act_connmark.c

···
 	int proto;
 
 	spin_lock(&ca->tcf_lock);
-	ca->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&ca->tcf_tm);
 	bstats_update(&ca->tcf_bstats, skb);
 
 	if (skb->protocol == htons(ETH_P_IP)) {
···
 	if (nla_put(skb, TCA_CONNMARK_PARMS, sizeof(opt), &opt))
 		goto nla_put_failure;
 
-	t.install = jiffies_to_clock_t(jiffies - ci->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - ci->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(ci->tcf_tm.expires);
+	tcf_tm_dump(&t, &ci->tcf_tm);
 	if (nla_put_64bit(skb, TCA_CONNMARK_TM, sizeof(t), &t,
 			  TCA_CONNMARK_PAD))
 		goto nla_put_failure;

net/sched/act_csum.c

···
 	u32 update_flags;
 
 	spin_lock(&p->tcf_lock);
-	p->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&p->tcf_tm);
 	bstats_update(&p->tcf_bstats, skb);
 	action = p->tcf_action;
 	update_flags = p->update_flags;
···
 
 	if (nla_put(skb, TCA_CSUM_PARMS, sizeof(opt), &opt))
 		goto nla_put_failure;
-	t.install = jiffies_to_clock_t(jiffies - p->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - p->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(p->tcf_tm.expires);
+
+	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;
 

net/sched/act_gact.c

···
 			goto nla_put_failure;
 	}
 #endif
-	t.install = jiffies_to_clock_t(jiffies - gact->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - gact->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(gact->tcf_tm.expires);
+	tcf_tm_dump(&t, &gact->tcf_tm);
 	if (nla_put_64bit(skb, TCA_GACT_TM, sizeof(t), &t, TCA_GACT_PAD))
 		goto nla_put_failure;
 	return skb->len;

net/sched/act_ife.c

···
 	if (nla_put(skb, TCA_IFE_PARMS, sizeof(opt), &opt))
 		goto nla_put_failure;
 
-	t.install = jiffies_to_clock_t(jiffies - ife->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - ife->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(ife->tcf_tm.expires);
+	tcf_tm_dump(&t, &ife->tcf_tm);
 	if (nla_put_64bit(skb, TCA_IFE_TM, sizeof(t), &t, TCA_IFE_PAD))
 		goto nla_put_failure;
 
···
 
 	spin_lock(&ife->tcf_lock);
 	bstats_update(&ife->tcf_bstats, skb);
-	ife->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&ife->tcf_tm);
 	spin_unlock(&ife->tcf_lock);
 
 	ifehdrln = ntohs(ifehdrln);
···
 
 	spin_lock(&ife->tcf_lock);
 	bstats_update(&ife->tcf_bstats, skb);
-	ife->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&ife->tcf_tm);
 
 	if (!metalen) {		/* no metadata to send */
 		/* abuse overlimits to count when we allow packet
···
 	pr_info_ratelimited("unknown failure(policy neither de/encode\n");
 	spin_lock(&ife->tcf_lock);
 	bstats_update(&ife->tcf_bstats, skb);
-	ife->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&ife->tcf_tm);
 	ife->tcf_qstats.drops++;
 	spin_unlock(&ife->tcf_lock);
 

net/sched/act_ipt.c

···
 
 	spin_lock(&ipt->tcf_lock);
 
-	ipt->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&ipt->tcf_tm);
 	bstats_update(&ipt->tcf_bstats, skb);
 
 	/* yes, we have to worry about both in and out dev
···
 	    nla_put(skb, TCA_IPT_CNT, sizeof(struct tc_cnt), &c) ||
 	    nla_put_string(skb, TCA_IPT_TABLE, ipt->tcfi_tname))
 		goto nla_put_failure;
-	tm.install = jiffies_to_clock_t(jiffies - ipt->tcf_tm.install);
-	tm.lastuse = jiffies_to_clock_t(jiffies - ipt->tcf_tm.lastuse);
-	tm.expires = jiffies_to_clock_t(ipt->tcf_tm.expires);
+
+	tcf_tm_dump(&tm, &ipt->tcf_tm);
 	if (nla_put_64bit(skb, TCA_IPT_TM, sizeof(tm), &tm, TCA_IPT_PAD))
 		goto nla_put_failure;
+
 	kfree(t);
 	return skb->len;
 

net/sched/act_mirred.c

···
 	u32 at;
 
 	tcf_lastuse_update(&m->tcf_tm);
-
 	bstats_cpu_update(this_cpu_ptr(m->common.cpu_bstats), skb);
 
 	rcu_read_lock();
···
 
 	if (nla_put(skb, TCA_MIRRED_PARMS, sizeof(opt), &opt))
 		goto nla_put_failure;
-	t.install = jiffies_to_clock_t(jiffies - m->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - m->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(m->tcf_tm.expires);
+
+	tcf_tm_dump(&t, &m->tcf_tm);
 	if (nla_put_64bit(skb, TCA_MIRRED_TM, sizeof(t), &t, TCA_MIRRED_PAD))
 		goto nla_put_failure;
 	return skb->len;

net/sched/act_nat.c

···
 
 	spin_lock(&p->tcf_lock);
 
-	p->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&p->tcf_tm);
 	old_addr = p->old_addr;
 	new_addr = p->new_addr;
 	mask = p->mask;
···
 
 	if (nla_put(skb, TCA_NAT_PARMS, sizeof(opt), &opt))
 		goto nla_put_failure;
-	t.install = jiffies_to_clock_t(jiffies - p->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - p->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(p->tcf_tm.expires);
+
+	tcf_tm_dump(&t, &p->tcf_tm);
 	if (nla_put_64bit(skb, TCA_NAT_TM, sizeof(t), &t, TCA_NAT_PAD))
 		goto nla_put_failure;
 

net/sched/act_pedit.c

···
 
 	spin_lock(&p->tcf_lock);
 
-	p->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&p->tcf_tm);
 
 	if (p->tcfp_nkeys > 0) {
 		struct tc_pedit_key *tkey = p->tcfp_keys;
···
 
 	if (nla_put(skb, TCA_PEDIT_PARMS, s, opt))
 		goto nla_put_failure;
-	t.install = jiffies_to_clock_t(jiffies - p->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - p->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(p->tcf_tm.expires);
+
+	tcf_tm_dump(&t, &p->tcf_tm);
 	if (nla_put_64bit(skb, TCA_PEDIT_TM, sizeof(t), &t, TCA_PEDIT_PAD))
 		goto nla_put_failure;
+
 	kfree(opt);
 	return skb->len;
 

net/sched/act_police.c

···
 		tcf_hash_new_index(tn);
 	police->tcf_tm.install = jiffies;
 	police->tcf_tm.lastuse = jiffies;
+	police->tcf_tm.firstuse = 0;
 	h = tcf_hash(police->tcf_index, POL_TAB_MASK);
 	spin_lock_bh(&hinfo->lock);
 	hlist_add_head(&police->tcf_head, &hinfo->htab[h]);
···
 
 	t.install = jiffies_to_clock_t(jiffies - police->tcf_tm.install);
 	t.lastuse = jiffies_to_clock_t(jiffies - police->tcf_tm.lastuse);
+	t.firstuse = jiffies_to_clock_t(jiffies - police->tcf_tm.firstuse);
 	t.expires = jiffies_to_clock_t(police->tcf_tm.expires);
 	if (nla_put_64bit(skb, TCA_POLICE_TM, sizeof(t), &t, TCA_POLICE_PAD))
 		goto nla_put_failure;

net/sched/act_simple.c

···
 	struct tcf_defact *d = a->priv;
 
 	spin_lock(&d->tcf_lock);
-	d->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&d->tcf_tm);
 	bstats_update(&d->tcf_bstats, skb);
 
 	/* print policy string followed by _ then packet count
···
 	if (nla_put(skb, TCA_DEF_PARMS, sizeof(opt), &opt) ||
 	    nla_put_string(skb, TCA_DEF_DATA, d->tcfd_defdata))
 		goto nla_put_failure;
-	t.install = jiffies_to_clock_t(jiffies - d->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - d->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(d->tcf_tm.expires);
+
+	tcf_tm_dump(&t, &d->tcf_tm);
 	if (nla_put_64bit(skb, TCA_DEF_TM, sizeof(t), &t, TCA_DEF_PAD))
 		goto nla_put_failure;
 	return skb->len;

net/sched/act_skbedit.c

···
 	struct tcf_skbedit *d = a->priv;
 
 	spin_lock(&d->tcf_lock);
-	d->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&d->tcf_tm);
 	bstats_update(&d->tcf_bstats, skb);
 
 	if (d->flags & SKBEDIT_F_PRIORITY)
···
 	    nla_put(skb, TCA_SKBEDIT_MARK, sizeof(d->mark),
 		    &d->mark))
 		goto nla_put_failure;
-	t.install = jiffies_to_clock_t(jiffies - d->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - d->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(d->tcf_tm.expires);
+
+	tcf_tm_dump(&t, &d->tcf_tm);
 	if (nla_put_64bit(skb, TCA_SKBEDIT_TM, sizeof(t), &t, TCA_SKBEDIT_PAD))
 		goto nla_put_failure;
 	return skb->len;

net/sched/act_vlan.c

···
 	int err;
 
 	spin_lock(&v->tcf_lock);
-	v->tcf_tm.lastuse = jiffies;
+	tcf_lastuse_update(&v->tcf_tm);
 	bstats_update(&v->tcf_bstats, skb);
 	action = v->tcf_action;
 
···
 	     nla_put_be16(skb, TCA_VLAN_PUSH_VLAN_PROTOCOL, v->tcfv_push_proto)))
 		goto nla_put_failure;
 
-	t.install = jiffies_to_clock_t(jiffies - v->tcf_tm.install);
-	t.lastuse = jiffies_to_clock_t(jiffies - v->tcf_tm.lastuse);
-	t.expires = jiffies_to_clock_t(v->tcf_tm.expires);
+	tcf_tm_dump(&t, &v->tcf_tm);
 	if (nla_put_64bit(skb, TCA_VLAN_TM, sizeof(t), &t, TCA_VLAN_PAD))
 		goto nla_put_failure;
 	return skb->len;