skbuff: convert to skb_orphan_frags

Reduce code duplication a bit using the new helper. Signed-off-by: Michael S. Tsirkin <[email protected]> Signed-off-by: David S. Miller <[email protected]>
kishon · Jul 22, 2012 · 70008aa · 70008aa
1 parent a353e0c
commit 70008aa
Showing 1 changed file with 8 additions and 14 deletions.
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
@@ -804,10 +804,8 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
 {
 	struct sk_buff *n;
 
-	if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
-		if (skb_copy_ubufs(skb, gfp_mask))
-			return NULL;
-	}
+	if (skb_orphan_frags(skb, gfp_mask))
+		return NULL;
 
 	n = skb + 1;
 	if (skb->fclone == SKB_FCLONE_ORIG &&
@@ -927,12 +925,10 @@ struct sk_buff *__pskb_copy(struct sk_buff *skb, int headroom, gfp_t gfp_mask)
 	if (skb_shinfo(skb)->nr_frags) {
 		int i;
 
-		if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
-			if (skb_copy_ubufs(skb, gfp_mask)) {
-				kfree_skb(n);
-				n = NULL;
-				goto out;
-			}
+		if (skb_orphan_frags(skb, gfp_mask)) {
+			kfree_skb(n);
+			n = NULL;
+			goto out;
 		}
 		for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 			skb_shinfo(n)->frags[i] = skb_shinfo(skb)->frags[i];
@@ -1005,10 +1001,8 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 	 */
 	if (skb_cloned(skb)) {
 		/* copy this zero copy skb frags */
-		if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
-			if (skb_copy_ubufs(skb, gfp_mask))
-				goto nofrags;
-		}
+		if (skb_orphan_frags(skb, gfp_mask))
+			goto nofrags;
 		for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
 			skb_frag_ref(skb, i);