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authorLinus Torvalds <torvalds@linux-foundation.org>2010-09-28 15:01:26 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-09-28 15:01:26 -0400
commita2724f28d9f99b7b42e800b528902f0e3321873b (patch)
treeb4431876af950c16ea6af3a8f2864a4ae494bc62 /net/ipv6/ip6_output.c
parent050026feae5bd4fe2db4096b63b15abce7c47faa (diff)
parent01db403cf99f739f86903314a489fb420e0e254f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits) tcp: Fix >4GB writes on 64-bit. net/9p: Mount only matching virtio channels de2104x: fix ethtool tproxy: check for transparent flag in ip_route_newports ipv6: add IPv6 to neighbour table overflow warning tcp: fix TSO FACK loss marking in tcp_mark_head_lost 3c59x: fix regression from patch "Add ethtool WOL support" ipv6: add a missing unregister_pernet_subsys call s390: use free_netdev(netdev) instead of kfree() sgiseeq: use free_netdev(netdev) instead of kfree() rionet: use free_netdev(netdev) instead of kfree() ibm_newemac: use free_netdev(netdev) instead of kfree() smsc911x: Add MODULE_ALIAS() net: reset skb queue mapping when rx'ing over tunnel br2684: fix scheduling while atomic de2104x: fix TP link detection de2104x: fix power management de2104x: disable autonegotiation on broken hardware net: fix a lockdep splat e1000e: 82579 do not gate auto config of PHY by hardware during nominal use ...
Diffstat (limited to 'net/ipv6/ip6_output.c')
-rw-r--r--net/ipv6/ip6_output.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index d40b330c0ee6..980912ed7a38 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -639,7 +639,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
639 639
640 if (skb_has_frags(skb)) { 640 if (skb_has_frags(skb)) {
641 int first_len = skb_pagelen(skb); 641 int first_len = skb_pagelen(skb);
642 int truesizes = 0; 642 struct sk_buff *frag2;
643 643
644 if (first_len - hlen > mtu || 644 if (first_len - hlen > mtu ||
645 ((first_len - hlen) & 7) || 645 ((first_len - hlen) & 7) ||
@@ -651,18 +651,18 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
651 if (frag->len > mtu || 651 if (frag->len > mtu ||
652 ((frag->len & 7) && frag->next) || 652 ((frag->len & 7) && frag->next) ||
653 skb_headroom(frag) < hlen) 653 skb_headroom(frag) < hlen)
654 goto slow_path; 654 goto slow_path_clean;
655 655
656 /* Partially cloned skb? */ 656 /* Partially cloned skb? */
657 if (skb_shared(frag)) 657 if (skb_shared(frag))
658 goto slow_path; 658 goto slow_path_clean;
659 659
660 BUG_ON(frag->sk); 660 BUG_ON(frag->sk);
661 if (skb->sk) { 661 if (skb->sk) {
662 frag->sk = skb->sk; 662 frag->sk = skb->sk;
663 frag->destructor = sock_wfree; 663 frag->destructor = sock_wfree;
664 truesizes += frag->truesize;
665 } 664 }
665 skb->truesize -= frag->truesize;
666 } 666 }
667 667
668 err = 0; 668 err = 0;
@@ -693,7 +693,6 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
693 693
694 first_len = skb_pagelen(skb); 694 first_len = skb_pagelen(skb);
695 skb->data_len = first_len - skb_headlen(skb); 695 skb->data_len = first_len - skb_headlen(skb);
696 skb->truesize -= truesizes;
697 skb->len = first_len; 696 skb->len = first_len;
698 ipv6_hdr(skb)->payload_len = htons(first_len - 697 ipv6_hdr(skb)->payload_len = htons(first_len -
699 sizeof(struct ipv6hdr)); 698 sizeof(struct ipv6hdr));
@@ -756,6 +755,15 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
756 IPSTATS_MIB_FRAGFAILS); 755 IPSTATS_MIB_FRAGFAILS);
757 dst_release(&rt->dst); 756 dst_release(&rt->dst);
758 return err; 757 return err;
758
759slow_path_clean:
760 skb_walk_frags(skb, frag2) {
761 if (frag2 == frag)
762 break;
763 frag2->sk = NULL;
764 frag2->destructor = NULL;
765 skb->truesize += frag2->truesize;
766 }
759 } 767 }
760 768
761slow_path: 769slow_path: