inetpeer: lower false sharing effect

[pandora-kernel.git] / include / net / inetpeer.h

diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 1f0966f..39d1230 100644 (file)
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -32,12 +32,17 @@ struct inet_peer {
        struct inet_peer __rcu  *avl_left, *avl_right;
        struct inetpeer_addr    daddr;
        __u32                   avl_height;
-       __u32                   dtime;          /* the time of last use of not
-                                                * referenced entries */
-       atomic_t                refcnt;
+
+       u32                     metrics[RTAX_MAX];
+       u32                     rate_tokens;    /* rate limiting for ICMP */
+       unsigned long           rate_last;
+       unsigned long           pmtu_expires;
+       u32                     pmtu_orig;
+       u32                     pmtu_learned;
+       struct inetpeer_addr_base redirect_learned;
        /*
         * Once inet_peer is queued for deletion (refcnt == -1), following fields
-        * are not available: rid, ip_id_count, tcp_ts, tcp_ts_stamp, metrics
+        * are not available: rid, ip_id_count, tcp_ts, tcp_ts_stamp
         * We can share memory with rcu_head to help keep inet_peer small.
         */
        union {
@@ -46,17 +51,14 @@ 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];
-                       u32                             rate_tokens;    /* rate limiting for ICMP */
-                       unsigned long                   rate_last;
-                       unsigned long                   pmtu_expires;
-                       u32                             pmtu_orig;
-                       u32                             pmtu_learned;
-                       struct inetpeer_addr_base       redirect_learned;
                };
                struct rcu_head         rcu;
                struct inet_peer        *gc_next;
        };
+
+       /* following fields might be frequently dirtied */
+       __u32                   dtime;  /* the time of last use of not referenced entries */
+       atomic_t                refcnt;
 };
 
 void                   inet_initpeers(void) __init;