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authorEric Dumazet <eric.dumazet@gmail.com>2011-10-19 23:14:46 +0000
committerDavid S. Miller <davem@davemloft.net>2011-10-21 02:53:00 -0400
commit4b727361f0bc7ee7378298941066d8aa15023ffb (patch)
tree9cee8374f965ade07d0ef9479e93af493ccaa32e /drivers/net
parente1ac50f64691de9a095ac5d73cb8ac73d3d17dba (diff)
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>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/virtio_net.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index abbf34fcf4cd..765ab9ac9d17 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -150,6 +150,7 @@ static void set_skb_frag(struct sk_buff *skb, struct page *page,
skb->data_len += size;
skb->len += size;
+ skb->truesize += PAGE_SIZE;
skb_shinfo(skb)->nr_frags++;
*len -= size;
}
@@ -287,7 +288,6 @@ static void receive_buf(struct net_device *dev, void *buf, unsigned int len)
}
hdr = skb_vnet_hdr(skb);
- skb->truesize += skb->data_len;
u64_stats_update_begin(&stats->syncp);
stats->rx_bytes += skb->len;