1 files changed, 29 insertions, 28 deletions

diff --git a/net/core/dst.c b/net/core/dst.c
index 91104d35de7d..9ccca038444f 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -19,6 +19,7 @@
 #include <linux/types.h>
 #include <net/net_namespace.h>
 #include <linux/sched.h>
+#include <linux/prefetch.h>
 
 #include <net/dst.h>
 
@@ -33,9 +34,6 @@
  * 3) This list is guarded by a mutex,
  *    so that the gc_task and dst_dev_event() can be synchronized.
  */
-#if RT_CACHE_DEBUG >= 2
-static atomic_t			 dst_total = ATOMIC_INIT(0);
-#endif
 
 /*
  * We want to keep lock & list close together
@@ -69,10 +67,6 @@ static void dst_gc_task(struct work_struct *work)
 	unsigned long expires = ~0L;
 	struct dst_entry *dst, *next, head;
 	struct dst_entry *last = &head;
-#if RT_CACHE_DEBUG >= 2
-	ktime_t time_start = ktime_get();
-	struct timespec elapsed;
-#endif
 
 	mutex_lock(&dst_gc_mutex);
 	next = dst_busy_list;
@@ -146,15 +140,6 @@ loop:
 
 	spin_unlock_bh(&dst_garbage.lock);
 	mutex_unlock(&dst_gc_mutex);
-#if RT_CACHE_DEBUG >= 2
-	elapsed = ktime_to_timespec(ktime_sub(ktime_get(), time_start));
-	printk(KERN_DEBUG "dst_total: %d delayed: %d work_perf: %d"
-		" expires: %lu elapsed: %lu us\n",
-		atomic_read(&dst_total), delayed, work_performed,
-		expires,
-		elapsed.tv_sec * USEC_PER_SEC +
-		  elapsed.tv_nsec / NSEC_PER_USEC);
-#endif
 }
 
 int dst_discard(struct sk_buff *skb)
@@ -166,7 +151,8 @@ EXPORT_SYMBOL(dst_discard);
 
 const u32 dst_default_metrics[RTAX_MAX];
 
-void *dst_alloc(struct dst_ops *ops, int initial_ref)
+void *dst_alloc(struct dst_ops *ops, struct net_device *dev,
+		int initial_ref, int initial_obsolete, int flags)
 {
 	struct dst_entry *dst;
 
@@ -174,18 +160,36 @@ void *dst_alloc(struct dst_ops *ops, int initial_ref)
 		if (ops->gc(ops))
 			return NULL;
 	}
-	dst = kmem_cache_zalloc(ops->kmem_cachep, GFP_ATOMIC);
+	dst = kmem_cache_alloc(ops->kmem_cachep, GFP_ATOMIC);
 	if (!dst)
 		return NULL;
-	atomic_set(&dst->__refcnt, initial_ref);
+	dst->child = NULL;
+	dst->dev = dev;
+	if (dev)
+		dev_hold(dev);
 	dst->ops = ops;
-	dst->lastuse = jiffies;
-	dst->path = dst;
-	dst->input = dst->output = dst_discard;
 	dst_init_metrics(dst, dst_default_metrics, true);
-#if RT_CACHE_DEBUG >= 2
-	atomic_inc(&dst_total);
+	dst->expires = 0UL;
+	dst->path = dst;
+	dst->neighbour = NULL;
+	dst->hh = NULL;
+#ifdef CONFIG_XFRM
+	dst->xfrm = NULL;
+#endif
+	dst->input = dst_discard;
+	dst->output = dst_discard;
+	dst->error = 0;
+	dst->obsolete = initial_obsolete;
+	dst->header_len = 0;
+	dst->trailer_len = 0;
+#ifdef CONFIG_IP_ROUTE_CLASSID
+	dst->tclassid = 0;
 #endif
+	atomic_set(&dst->__refcnt, initial_ref);
+	dst->__use = 0;
+	dst->lastuse = jiffies;
+	dst->flags = flags;
+	dst->next = NULL;
 	dst_entries_add(ops, 1);
 	return dst;
 }
@@ -245,9 +249,6 @@ again:
 		dst->ops->destroy(dst);
 	if (dst->dev)
 		dev_put(dst->dev);
-#if RT_CACHE_DEBUG >= 2
-	atomic_dec(&dst_total);
-#endif
 	kmem_cache_free(dst->ops->kmem_cachep, dst);
 
 	dst = child;
@@ -314,7 +315,7 @@ void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old)
 {
 	unsigned long prev, new;
 
-	new = (unsigned long) dst_default_metrics;
+	new = ((unsigned long) dst_default_metrics) | DST_METRICS_READ_ONLY;
 	prev = cmpxchg(&dst->_metrics, old, new);
 	if (prev == old)
 		kfree(__DST_METRICS_PTR(old));