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tipc: eliminate unnecessary skb expansion during retransmission 

We increase the allocated headroom for the buffer copies to be
retransmitted. This eliminates the need for the lower stack levels
(UDP/IP/L2) to expand the headroom in order to add their own headers.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Maloy 2019-06-25 18:08:13 +02:00 committed by David S. Miller
parent 77cf8edbc0
commit 20c6731294
1 changed files with 1 additions and 1 deletions
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2
net/tipc/link.c
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@ -1125,7 +1125,7 @@ static int tipc_link_bc_retrans(struct tipc_link *l, struct tipc_link *r,
continue;
TIPC_SKB_CB(skb)->nxt_retr = jiffies + TIPC_BC_RETR_LIM;
}
_skb = __pskb_copy(skb, MIN_H_SIZE, GFP_ATOMIC);
_skb = __pskb_copy(skb, LL_MAX_HEADER + MIN_H_SIZE, GFP_ATOMIC);
if (!_skb)
return 0;
hdr = buf_msg(_skb);