Commits
Eric Dumazet committed 694aba690de
ipv4: factorize sk_wmem_alloc updates done by __ip_append_data() While testing my inet defrag changes, I found that the senders could spend ~20% of cpu cycles in skb_set_owner_w() updating sk->sk_wmem_alloc for every fragment they cook. The solution to this problem is to use alloc_skb() instead of sock_wmalloc() and manually perform a single sk_wmem_alloc change. Similar change for IPv6 is provided in following patch. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>