From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 13 Oct 2011 07:59:41 +0000 (+0000)
Subject: ixgbe: fix skb truesize underestimation
X-Git-Tag: v3.12-rc1~4599^2~95
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=98130646770db42cd14c44ba0d7f2d0eb8078820;p=kernel%2Fkernel-generic.git

ixgbe: fix skb truesize underestimation

ixgbe 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/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index f6fea67..f740a8e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1326,7 +1326,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 
 			skb->len += upper_len;
 			skb->data_len += upper_len;
-			skb->truesize += upper_len;
+			skb->truesize += PAGE_SIZE / 2;
 		}
 
 		i++;