From: Pravin B Shelar <pshelar@nicira.com>
Date: Sun, 3 Mar 2013 07:53:52 +0000 (-0800)
Subject: datapath: Backport skb_frag_ functions
X-Git-Tag: sliver-openvswitch-2.1.90-1~10^2~148
X-Git-Url: http://git.onelab.eu/?p=sliver-openvswitch.git;a=commitdiff_plain;h=c622970f83e756f8e914c945d2b1044a2b21c158

datapath: Backport skb_frag_ functions

Define accessors skb_frag_* functions whch were introduced in 3.2

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
---

diff --git a/datapath/linux/compat/include/linux/skbuff.h b/datapath/linux/compat/include/linux/skbuff.h
index a5f87020b..be134d724 100644
--- a/datapath/linux/compat/include/linux/skbuff.h
+++ b/datapath/linux/compat/include/linux/skbuff.h
@@ -194,6 +194,34 @@ static inline struct page *skb_frag_page(const skb_frag_t *frag)
 {
 	return frag->page;
 }
+
+static inline void __skb_frag_set_page(skb_frag_t *frag, struct page *page)
+{
+	frag->page = page;
+}
+static inline void skb_frag_size_set(skb_frag_t *frag, unsigned int size)
+{
+	frag->size = size;
+}
+static inline void __skb_frag_ref(skb_frag_t *frag)
+{
+	get_page(skb_frag_page(frag));
+}
+static inline void __skb_frag_unref(skb_frag_t *frag)
+{
+	put_page(skb_frag_page(frag));
+}
+
+static inline void skb_frag_ref(struct sk_buff *skb, int f)
+{
+	__skb_frag_ref(&skb_shinfo(skb)->frags[f]);
+}
+
+static inline void skb_frag_unref(struct sk_buff *skb, int f)
+{
+	__skb_frag_unref(&skb_shinfo(skb)->frags[f]);
+}
+
 #endif
 
 #ifndef HAVE_SKB_RESET_MAC_LEN