net: ipv4: convert to SKB frag APIs

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: "Pekka Savola (ipv6)" <pekkas@netcore.fi>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 8c6563361ab5..ae3bb147affd 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -989,13 +989,13 @@ alloc_new_skb:
                         if (page && (left = PAGE_SIZE - off) > 0) {
                                 if (copy >= left)
                                         copy = left;
-                                if (page != frag->page) {
+                                if (page != skb_frag_page(frag)) {
                                         if (i == MAX_SKB_FRAGS) {
                                                 err = -EMSGSIZE;
                                                 goto error;
                                         }
-                                        get_page(page);
                                         skb_fill_page_desc(skb, i, page, off, 0);
+                                        skb_frag_ref(skb, i);
                                         frag = &skb_shinfo(skb)->frags[i];
                                 }
                         } else if (i < MAX_SKB_FRAGS) {
@@ -1015,7 +1015,8 @@ alloc_new_skb:
                                 err = -EMSGSIZE;
                                 goto error;
                         }
-                        if (getfrag(from, page_address(frag->page)+frag->page_offset+frag->size, offset, copy, skb->len, skb) < 0) {
+                        if (getfrag(from, skb_frag_address(frag)+frag->size,
+                                    offset, copy, skb->len, skb) < 0) {
                                 err = -EFAULT;
                                 goto error;
                         }