[NET]: Store skb->timestamp as offset to a base timestamp

[net-next-2.6.git] / net / core / skbuff.c

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ef498cb9f786ebd6a93c8168302e43cb6ae1b6ff..39a161dbc16d4d536a1cff7440b0754d41ac1a30 100644 (file)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -70,6 +70,8 @@
 
 static kmem_cache_t *skbuff_head_cache;
 
+struct timeval __read_mostly skb_tv_base;
+
 /*
  *     Keep out-of-line to prevent kernel bloat.
  *     __builtin_return_address is not used because it is not always
@@ -331,7 +333,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, unsigned int __nocast gfp_mask)
 
        n->next = n->prev = NULL;
        n->sk = NULL;
-       C(stamp);
+       C(tstamp);
        C(dev);
        C(h);
        C(nh);
@@ -408,7 +410,7 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
        memcpy(new->cb, old->cb, sizeof(old->cb));
        new->local_df   = old->local_df;
        new->pkt_type   = old->pkt_type;
-       new->stamp      = old->stamp;
+       new->tstamp     = old->tstamp;
        new->destructor = NULL;
 #ifdef CONFIG_NETFILTER
        new->nfmark     = old->nfmark;
@@ -1645,6 +1647,7 @@ void __init skb_init(void)
                                              NULL, NULL);
        if (!skbuff_head_cache)
                panic("cannot create skbuff cache");
+       do_gettimeofday(&skb_tv_base);
 }
 
 EXPORT_SYMBOL(___pskb_trim);
@@ -1678,3 +1681,4 @@ EXPORT_SYMBOL(skb_prepare_seq_read);
 EXPORT_SYMBOL(skb_seq_read);
 EXPORT_SYMBOL(skb_abort_seq_read);
 EXPORT_SYMBOL(skb_find_text);
+EXPORT_SYMBOL(skb_tv_base);