v4.19.13 snapshot.
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
new file mode 100644
index 0000000..883bb90
--- /dev/null
+++ b/include/net/gen_stats.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NET_GEN_STATS_H
+#define __NET_GEN_STATS_H
+
+#include <linux/gen_stats.h>
+#include <linux/socket.h>
+#include <linux/rtnetlink.h>
+#include <linux/pkt_sched.h>
+
+struct gnet_stats_basic_cpu {
+ struct gnet_stats_basic_packed bstats;
+ struct u64_stats_sync syncp;
+};
+
+struct net_rate_estimator;
+
+struct gnet_dump {
+ spinlock_t * lock;
+ struct sk_buff * skb;
+ struct nlattr * tail;
+
+ /* Backward compatibility */
+ int compat_tc_stats;
+ int compat_xstats;
+ int padattr;
+ void * xstats;
+ int xstats_len;
+ struct tc_stats tc_stats;
+};
+
+int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
+ struct gnet_dump *d, int padattr);
+
+int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
+ int tc_stats_type, int xstats_type,
+ spinlock_t *lock, struct gnet_dump *d,
+ int padattr);
+
+int gnet_stats_copy_basic(const seqcount_t *running,
+ struct gnet_dump *d,
+ struct gnet_stats_basic_cpu __percpu *cpu,
+ struct gnet_stats_basic_packed *b);
+void __gnet_stats_copy_basic(const seqcount_t *running,
+ struct gnet_stats_basic_packed *bstats,
+ struct gnet_stats_basic_cpu __percpu *cpu,
+ struct gnet_stats_basic_packed *b);
+int gnet_stats_copy_rate_est(struct gnet_dump *d,
+ struct net_rate_estimator __rcu **ptr);
+int gnet_stats_copy_queue(struct gnet_dump *d,
+ struct gnet_stats_queue __percpu *cpu_q,
+ struct gnet_stats_queue *q, __u32 qlen);
+void __gnet_stats_copy_queue(struct gnet_stats_queue *qstats,
+ const struct gnet_stats_queue __percpu *cpu_q,
+ const struct gnet_stats_queue *q, __u32 qlen);
+int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
+
+int gnet_stats_finish_copy(struct gnet_dump *d);
+
+int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
+ struct gnet_stats_basic_cpu __percpu *cpu_bstats,
+ struct net_rate_estimator __rcu **rate_est,
+ spinlock_t *lock,
+ seqcount_t *running, struct nlattr *opt);
+void gen_kill_estimator(struct net_rate_estimator __rcu **ptr);
+int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
+ struct gnet_stats_basic_cpu __percpu *cpu_bstats,
+ struct net_rate_estimator __rcu **ptr,
+ spinlock_t *lock,
+ seqcount_t *running, struct nlattr *opt);
+bool gen_estimator_active(struct net_rate_estimator __rcu **ptr);
+bool gen_estimator_read(struct net_rate_estimator __rcu **ptr,
+ struct gnet_stats_rate_est64 *sample);
+#endif