e1000e: fix skb truesize underestimation

e1000e allocates a page per skb fragment. We must account
PAGE_SIZE increments on skb->truesize, not the actual frag length.

(cherry picked from commit 98a045d7e4a59db0865a59eea2140fe36bc7c220)
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/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 2c35855dc0f5e5cf1e2919641eac825f4ea21315..d77be033112dfb17520799259e5d33a85e639bd9 100644 (file)
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -1316,7 +1316,7 @@ static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
                        ps_page->page = NULL;
                        skb->len += length;
                        skb->data_len += length;
-                       skb->truesize += length;
+                       skb->truesize += PAGE_SIZE;
                }
 
                /* strip the ethernet crc, problem is we're using pages now so
@@ -1376,7 +1376,7 @@ static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb,
        bi->page = NULL;
        skb->len += length;
        skb->data_len += length;
-       skb->truesize += length;
+       skb->truesize += PAGE_SIZE;
 }
 
 /**