From: Eric Dumazet <eric.dumazet@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>,
Shreyas Bhatewara <sbhatewara@vmware.com>
Subject: [PATCH net-next] vmxnet3: fix skb truesize underestimation
Date: Thu, 13 Oct 2011 23:38:17 +0200 [thread overview]
Message-ID: <1318541897.2533.33.camel@edumazet-laptop> (raw)
vmxnet3 allocates a page per skb fragment. We must account
PAGE_SIZE increments on skb->truesize, not the actual frag length.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Shreyas Bhatewara <sbhatewara@vmware.com>
---
drivers/net/vmxnet3/vmxnet3_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 1694038..902f284 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -658,6 +658,7 @@ vmxnet3_append_frag(struct sk_buff *skb, struct Vmxnet3_RxCompDesc *rcd,
frag->page_offset = 0;
frag->size = rcd->len;
skb->data_len += frag->size;
+ skb->truesize += PAGE_SIZE;
skb_shinfo(skb)->nr_frags++;
}
@@ -1277,7 +1278,6 @@ vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue *rq,
skb = ctx->skb;
if (rcd->eop) {
skb->len += skb->data_len;
- skb->truesize += skb->data_len;
vmxnet3_rx_csum(adapter, skb,
(union Vmxnet3_GenericDesc *)rcd);
next reply other threads:[~2011-10-13 21:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-13 21:38 Eric Dumazet [this message]
2011-10-14 2:26 ` [PATCH net-next] vmxnet3: fix skb truesize underestimation David Miller
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