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-rw-r--r--include/net/inetpeer.h13
1 files changed, 11 insertions, 2 deletions
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 599d96e74114..61f2c66edb2a 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -11,6 +11,7 @@
#include <linux/init.h>
#include <linux/jiffies.h>
#include <linux/spinlock.h>
+#include <linux/rtnetlink.h>
#include <net/ipv6.h>
#include <asm/atomic.h>
@@ -33,8 +34,8 @@ struct inet_peer {
atomic_t refcnt;
/*
* Once inet_peer is queued for deletion (refcnt == -1), following fields
- * are not available: rid, ip_id_count, tcp_ts, tcp_ts_stamp
- * We can share memory with rcu_head to keep inet_peer small
+ * are not available: rid, ip_id_count, tcp_ts, tcp_ts_stamp, metrics
+ * We can share memory with rcu_head to help keep inet_peer small.
*/
union {
struct {
@@ -42,6 +43,7 @@ struct inet_peer {
atomic_t ip_id_count; /* IP ID for the next packet */
__u32 tcp_ts;
__u32 tcp_ts_stamp;
+ u32 metrics[RTAX_MAX];
};
struct rcu_head rcu;
};
@@ -49,6 +51,13 @@ struct inet_peer {
void inet_initpeers(void) __init;
+#define INETPEER_METRICS_NEW (~(u32) 0)
+
+static inline bool inet_metrics_new(const struct inet_peer *p)
+{
+ return p->metrics[RTAX_LOCK-1] == INETPEER_METRICS_NEW;
+}
+
/* can be called with or without local BH being disabled */
struct inet_peer *inet_getpeer(struct inetpeer_addr *daddr, int create);