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: v2.6.39-400.9.0~423^2~19^2~11^2~149
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=8a2afea7cd3f08a98d9409d0f2aedaa5f4f6d0f2;p=users%2Fjedix%2Flinux-maple.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.

(cherry picked from commit 98130646770db42cd14c44ba0d7f2d0eb8078820)
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>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
---

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index a6d602e66feba..bc0a2d11df31f 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -1325,7 +1325,7 @@ 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++;