From: Eric Dumazet <redacted>
Date: Thu, 04 Jun 2009 06:54:24 +0200

We also can avoid the sock_put()/sock_hold() pair for each tx packet,
to only touch sk_wmem_alloc (with appropriate atomic_sub_return() in sock_wfree()
and atomic_dec_test in sk_free

We could initialize sk->sk_wmem_alloc to one instead of 0, so that
sock_wfree() could just synchronize itself with sk_free()

Excellent idea Eric.

Patch will follow after some testing

I look forward to it :-)