[NET]: rtnetlink -- RTA_PUT unlikely.

70a209fb · Stephen Hemminger · a5e22b6d · 70a209fb
Commit 70a209fb authored Sep 22, 2003 by Stephen Hemminger
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Showing with 6 additions and 4 deletions

include/linux/rtnetlink.h include/linux/rtnetlink.h +6 -4

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--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -642,8 +642,9 @@ extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics);
 extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data);
 #define RTA_PUT(skb, attrtype, attrlen, data) \
-({ if (skb_tailroom(skb) < (int)RTA_SPACE(attrlen)) goto rtattr_failure; \
+({	if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \
-   __rta_fill(skb, attrtype, attrlen, data); })
+		 goto rtattr_failure; \
+   	__rta_fill(skb, attrtype, attrlen, data); }) 
 static inline struct rtattr *
 __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen)
@@ -658,8 +659,9 @@ __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen)
 }
 #define __RTA_PUT(skb, attrtype, attrlen) \
-({ if (skb_tailroom(skb) < (int)RTA_SPACE(attrlen)) goto rtattr_failure; \
+({ 	if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \
-   __rta_reserve(skb, attrtype, attrlen); })
+		goto rtattr_failure; \
+   	__rta_reserve(skb, attrtype, attrlen); })
 extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change);