diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/pktgen.c | 35 |
1 files changed, 9 insertions, 26 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 2fa6fee1b46..ff79d94b594 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -2622,6 +2622,7 @@ static void pktgen_finalize_skb(struct pktgen_dev *pkt_dev, struct sk_buff *skb, } else { int frags = pkt_dev->nfrags; int i, len; + int frag_len; if (frags > MAX_SKB_FRAGS) @@ -2633,6 +2634,8 @@ static void pktgen_finalize_skb(struct pktgen_dev *pkt_dev, struct sk_buff *skb, } i = 0; + frag_len = (datalen/frags) < PAGE_SIZE ? + (datalen/frags) : PAGE_SIZE; while (datalen > 0) { if (unlikely(!pkt_dev->page)) { int node = numa_node_id(); @@ -2646,38 +2649,18 @@ static void pktgen_finalize_skb(struct pktgen_dev *pkt_dev, struct sk_buff *skb, skb_shinfo(skb)->frags[i].page = pkt_dev->page; get_page(pkt_dev->page); skb_shinfo(skb)->frags[i].page_offset = 0; - skb_shinfo(skb)->frags[i].size = - (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); + /*last fragment, fill rest of data*/ + if (i == (frags - 1)) + skb_shinfo(skb)->frags[i].size = + (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); + else + skb_shinfo(skb)->frags[i].size = frag_len; datalen -= skb_shinfo(skb)->frags[i].size; skb->len += skb_shinfo(skb)->frags[i].size; skb->data_len += skb_shinfo(skb)->frags[i].size; i++; skb_shinfo(skb)->nr_frags = i; } - - while (i < frags) { - int rem; - - if (i == 0) - break; - - rem = skb_shinfo(skb)->frags[i - 1].size / 2; - if (rem == 0) - break; - - skb_shinfo(skb)->frags[i - 1].size -= rem; - - skb_shinfo(skb)->frags[i] = - skb_shinfo(skb)->frags[i - 1]; - get_page(skb_shinfo(skb)->frags[i].page); - skb_shinfo(skb)->frags[i].page = - skb_shinfo(skb)->frags[i - 1].page; - skb_shinfo(skb)->frags[i].page_offset += - skb_shinfo(skb)->frags[i - 1].size; - skb_shinfo(skb)->frags[i].size = rem; - i++; - skb_shinfo(skb)->nr_frags = i; - } } /* Stamp the time, and sequence number, |