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myri10ge: fix truesize underestimation 

skb->truesize must account for allocated memory, not the used part of
it. Doing this work is important to avoid unexpected OOM situations.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Jon Mason <mason@myri.com>
Acked-by: Jon Mason <mason@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2011-10-20 10:10:03 +00:00 committed by David S. Miller
parent 7b8b59617e
commit 924a4c7d2e
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/myricom/myri10ge/myri10ge.c
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@ -1210,7 +1210,6 @@ myri10ge_rx_skb_build(struct sk_buff *skb, u8 * va,
struct skb_frag_struct *skb_frags;
skb->len = skb->data_len = len;
skb->truesize = len + sizeof(struct sk_buff);
/* attach the page(s) */
skb_frags = skb_shinfo(skb)->frags;
@ -1385,6 +1384,8 @@ myri10ge_rx_done(struct myri10ge_slice_state *ss, int len, __wsum csum,
if (skb_frag_size(&skb_shinfo(skb)->frags[0]) <= 0) {
skb_frag_unref(skb, 0);
skb_shinfo(skb)->nr_frags = 0;
} else {
skb->truesize += bytes * skb_shinfo(skb)->nr_frags;
}
skb->protocol = eth_type_trans(skb, dev);
skb_record_rx_queue(skb, ss - &mgp->ss[0]);