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authorDavid S. Miller <davem@davemloft.net>2010-05-02 02:21:44 -0700
committerDavid S. Miller <davem@davemloft.net>2010-05-02 02:21:44 -0700
commit47d29646a2c1c147d8a7598aeac2c87dd71ed638 (patch)
treeb38f05d82883b5c0fc885812172a546af966d419 /include/linux/skbuff.h
parent43815482370c510c569fd18edb57afcb0fa8cab6 (diff)
net: Inline skb_pull() in eth_type_trans().
In commit 6be8ac2f ("[NET]: uninline skb_pull, de-bloats a lot") we uninlined skb_pull. But in some critical paths it makes sense to inline this thing and it helps performance significantly. Create an skb_pull_inline() so that we can do this in a way that serves also as annotation. Based upon a patch by Eric Dumazet. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 82f5116a89e..746a652b9f6 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1128,6 +1128,11 @@ static inline unsigned char *__skb_pull(struct sk_buff *skb, unsigned int len)
return skb->data += len;
}
+static inline unsigned char *skb_pull_inline(struct sk_buff *skb, unsigned int len)
+{
+ return unlikely(len > skb->len) ? NULL : __skb_pull(skb, len);
+}
+
extern unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta);
static inline unsigned char *__pskb_pull(struct sk_buff *skb, unsigned int len)