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authorPatrick McHardy <kaber@trash.net>2005-08-15 04:24:31 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-30 02:58:24 +0400
commita61bbcf28a8cb0ba56f8193d512f7222e711a294 (patch)
tree33ae1976ab3b08aac516debb2742d2c6696d5436 /net/core/skbuff.c
parent25ed891019b84498c83903ecf53df7ce35e9cff6 (diff)
downloadlinux-a61bbcf28a8cb0ba56f8193d512f7222e711a294.tar.xz
[NET]: Store skb->timestamp as offset to a base timestamp
Reduces skb size by 8 bytes on 64-bit. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/skbuff.c')
-rw-r--r--net/core/skbuff.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ef498cb9f786..39a161dbc16d 100644
--- 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);