mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-22 00:40:03 +00:00
net-gro: reset skb->truesize in napi_reuse_skb()
Recycling skb always had been very tough... This time it appears GRO layer can accumulate skb->truesize adjustments made by drivers when they attach a fragment to skb. skb_gro_receive() can only subtract from skb->truesize the used part of a fragment. I spotted this problem seeing TcpExtPruneCalled and TcpExtTCPRcvCollapsed that were unexpected with a recent kernel, where TCP receive window should be sized properly to accept traffic coming from a driver not overshooting skb->truesize. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
240a12d58e
commit
e33d0ba804
1 changed files with 1 additions and 0 deletions
|
@ -4043,6 +4043,7 @@ static void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb)
|
|||
skb->vlan_tci = 0;
|
||||
skb->dev = napi->dev;
|
||||
skb->skb_iif = 0;
|
||||
skb->truesize = SKB_TRUESIZE(skb_end_offset(skb));
|
||||
|
||||
napi->skb = skb;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue