78 	struct net_rate_estimator *est = from_timer(est, t, timer);  in est_timer()  local
82 	est_fetch_counters(est, &b);  in est_timer()
83 	brate = (b.bytes - est->last_bytes) << (10 - est->intvl_log);  in est_timer()
84 	brate = (brate >> est->ewma_log) - (est->avbps >> est->ewma_log);  in est_timer()
86 	rate = (b.packets - est->last_packets) << (10 - est->intvl_log);  in est_timer()
87 	rate = (rate >> est->ewma_log) - (est->avpps >> est->ewma_log);  in est_timer()
89 	write_seqcount_begin(&est->seq);  in est_timer()
90 	est->avbps += brate;  in est_timer()
91 	est->avpps += rate;  in est_timer()
92 	write_seqcount_end(&est->seq);  in est_timer()
94 	est->last_bytes = b.bytes;  in est_timer()
95 	est->last_packets = b.packets;  in est_timer()
97 	est->next_jiffies += ((HZ/4) << est->intvl_log);  in est_timer()
99 	if (unlikely(time_after_eq(jiffies, est->next_jiffies))) {  in est_timer()
101 		est->next_jiffies = jiffies + 1;  in est_timer()
103 	mod_timer(&est->timer, est->next_jiffies);  in est_timer()
132 	struct net_rate_estimator *old, *est;  in gen_new_estimator()  local
149 	est = kzalloc(sizeof(*est), GFP_KERNEL);  in gen_new_estimator()
150 	if (!est)  in gen_new_estimator()
153 	seqcount_init(&est->seq);  in gen_new_estimator()
155 	est->bstats = bstats;  in gen_new_estimator()
156 	est->stats_lock = lock;  in gen_new_estimator()
157 	est->running  = running;  in gen_new_estimator()
158 	est->ewma_log = parm->ewma_log;  in gen_new_estimator()
159 	est->intvl_log = intvl_log;  in gen_new_estimator()
160 	est->cpu_bstats = cpu_bstats;  in gen_new_estimator()
164 	est_fetch_counters(est, &b);  in gen_new_estimator()
167 	est->last_bytes = b.bytes;  in gen_new_estimator()
168 	est->last_packets = b.packets;  in gen_new_estimator()
175 		est->avbps = old->avbps;  in gen_new_estimator()
176 		est->avpps = old->avpps;  in gen_new_estimator()
179 	est->next_jiffies = jiffies + ((HZ/4) << intvl_log);  in gen_new_estimator()
180 	timer_setup(&est->timer, est_timer, 0);  in gen_new_estimator()
181 	mod_timer(&est->timer, est->next_jiffies);  in gen_new_estimator()
183 	rcu_assign_pointer(*rate_est, est);  in gen_new_estimator()
201 	struct net_rate_estimator *est;  in gen_kill_estimator()  local
203 	est = xchg((__force struct net_rate_estimator **)rate_est, NULL);  in gen_kill_estimator()
204 	if (est) {  in gen_kill_estimator()
205 		del_timer_sync(&est->timer);  in gen_kill_estimator()
206 		kfree_rcu(est, rcu);  in gen_kill_estimator()
251 	struct net_rate_estimator *est;  in gen_estimator_read()  local
255 	est = rcu_dereference(*rate_est);  in gen_estimator_read()
256 	if (!est) {  in gen_estimator_read()
262 		seq = read_seqcount_begin(&est->seq);  in gen_estimator_read()
263 		sample->bps = est->avbps >> 8;  in gen_estimator_read()
264 		sample->pps = est->avpps >> 8;  in gen_estimator_read()
265 	} while (read_seqcount_retry(&est->seq, seq));  in gen_estimator_read()