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net: xfrm: convert to SKB frag APIs

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Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ian Campbell 2011-08-22 23:45:01 +00:00 committed by David S. Miller
parent 408dadf03f
commit 804cf14ea5
1 changed files with 7 additions and 4 deletions
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11
net/xfrm/xfrm_ipcomp.c
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@ -70,26 +70,29 @@ static int ipcomp_decompress(struct xfrm_state *x, struct sk_buff *skb)
while ((scratch += len, dlen -= len) > 0) {
skb_frag_t *frag;
struct page *page;
err = -EMSGSIZE;
if (WARN_ON(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS))
goto out;
frag = skb_shinfo(skb)->frags + skb_shinfo(skb)->nr_frags;
frag->page = alloc_page(GFP_ATOMIC);
page = alloc_page(GFP_ATOMIC);
err = -ENOMEM;
if (!frag->page)
if (!page)
goto out;
__skb_frag_set_page(frag, page);
len = PAGE_SIZE;
if (dlen < len)
len = dlen;
memcpy(page_address(frag->page), scratch, len);
frag->page_offset = 0;
frag->size = len;
memcpy(skb_frag_address(frag), scratch, len);
skb->truesize += len;
skb->data_len += len;
skb->len += len;