From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 20 Oct 2011 09:22:18 +0000 (+0000)
Subject: igbvf: fix truesize underestimation
X-Git-Tag: v3.2-rc1~182^2~40
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=7b8b59617ead5acc6ff041a9ad2ea1fe7a58094f;p=~emulex%2Finfiniband.git

igbvf: fix truesize underestimation

igbvf allocates half a page per skb fragment. We must account
PAGE_SIZE/2 increments on skb->truesize, not the actual frag length.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 1bd9abddcc5..db298174801 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -312,7 +312,7 @@ static bool igbvf_clean_rx_irq(struct igbvf_adapter *adapter,
 
 			skb->len += length;
 			skb->data_len += length;
-			skb->truesize += length;
+			skb->truesize += PAGE_SIZE / 2;
 		}
 send_up:
 		i++;