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virtio_net: fix truesize underestimation
We must account in skb->truesize, the size of the fragments, not the used part of them. Doing this work is important to avoid unexpected OOM situations. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Rusty Russell <rusty@rustcorp.com.au> CC: "Michael S. Tsirkin" <mst@redhat.com> CC: virtualization@lists.linux-foundation.org CC: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 1 additions and 1 deletions
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@ -150,6 +150,7 @@ static void set_skb_frag(struct sk_buff *skb, struct page *page,
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skb->data_len += size;
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skb->len += size;
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skb->truesize += PAGE_SIZE;
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skb_shinfo(skb)->nr_frags++;
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*len -= size;
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}
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@ -287,7 +288,6 @@ static void receive_buf(struct net_device *dev, void *buf, unsigned int len)
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}
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hdr = skb_vnet_hdr(skb);
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skb->truesize += skb->data_len;
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u64_stats_update_begin(&stats->syncp);
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stats->rx_bytes += skb->len;
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