---

yaml --- r: 193912 b: refs/heads/master c: bd2c77a h: refs/heads/master v: v3
git-mirror · Apr 2, 2010 · 23d524b · 23d524b
1 parent ea0ec72
commit 23d524b
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Showing 2 changed files with 17 additions and 14 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 152102c7f2bf191690f1069bae292ea3925adf14
+refs/heads/master: bd2c77a0a749589b45f2697ea446a4438d078f9b
diff --git a/trunk/include/net/ip6_fib.h b/trunk/include/net/ip6_fib.h
@@ -88,34 +88,37 @@ struct rt6_info {
 		struct dst_entry	dst;
 	} u;
 
-	struct inet6_dev		*rt6i_idev;
-
 #define rt6i_dev			u.dst.dev
 #define rt6i_nexthop			u.dst.neighbour
 #define rt6i_expires			u.dst.expires
 
+	/*
+	 * Tail elements of dst_entry (__refcnt etc.)
+	 * and these elements (rarely used in hot path) are in
+	 * the same cache line.
+	 */
+	struct fib6_table		*rt6i_table;
 	struct fib6_node		*rt6i_node;
 
 	struct in6_addr			rt6i_gateway;
-
-	u32				rt6i_flags;
-	u32				rt6i_metric;
-	atomic_t			rt6i_ref;
 
-	/* more non-fragment space at head required */
-	unsigned short			rt6i_nfheader_len;
-
-	u8				rt6i_protocol;
+	atomic_t			rt6i_ref;
 
-	struct fib6_table		*rt6i_table;
+	/* These are in a separate cache line. */
+	struct rt6key			rt6i_dst ____cacheline_aligned_in_smp;
+	u32				rt6i_flags;
+	struct rt6key			rt6i_src;
+	u32				rt6i_metric;
 
-	struct rt6key			rt6i_dst;
+	struct inet6_dev		*rt6i_idev;
 
 #ifdef CONFIG_XFRM
 	u32				rt6i_flow_cache_genid;
 #endif
+	/* more non-fragment space at head required */
+	unsigned short			rt6i_nfheader_len;
 
-	struct rt6key			rt6i_src;
+	u8				rt6i_protocol;
 };
 
 static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst)