From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: rusty@rustcorp.com.au, netdev@vger.kernel.org,
virtualization@lists.linux-foundation.org, divy@chelsio.com,
rolandd@cisco.com, xemul@openvz.org, dcbw@redhat.com,
libertas-dev@lists.infradead.org
Subject: Re: [PATCH 1/4] net: skb_orphan on dev_hard_start_xmit
Date: Wed, 03 Jun 2009 21:56:21 -0700 (PDT) [thread overview]
Message-ID: <20090603.215621.136203134.davem@davemloft.net> (raw)
In-Reply-To: <4A275380.1050601@gmail.com>
From: Eric Dumazet <eric.dumazet@gmail.com>
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 :-)
next prev parent reply other threads:[~2009-06-04 4:56 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-29 14:14 [PATCH 1/4] net: skb_orphan on dev_hard_start_xmit Rusty Russell
2009-05-29 15:11 ` Eric Dumazet
2009-06-01 12:27 ` Rusty Russell
2009-06-03 21:02 ` Eric Dumazet
2009-06-04 3:54 ` Rusty Russell
2009-06-04 4:00 ` David Miller
2009-06-04 4:54 ` Eric Dumazet
2009-06-04 4:56 ` David Miller [this message]
2009-06-04 9:18 ` [PATCH] net: No more expensive sock_hold()/sock_put() on each tx Eric Dumazet
2009-06-04 9:26 ` David Miller
2009-06-10 8:17 ` David Miller
2009-06-10 8:30 ` Eric Dumazet
2009-06-11 9:56 ` David Miller
2009-06-01 19:47 ` [PATCH 1/4] net: skb_orphan on dev_hard_start_xmit Patrick Ohly
2009-06-02 7:25 ` David Miller
2009-06-02 14:08 ` Rusty Russell
2009-06-03 0:14 ` David Miller
2009-07-03 7:55 ` Herbert Xu
2009-07-04 3:02 ` David Miller
2009-07-04 3:08 ` Herbert Xu
2009-07-04 3:13 ` David Miller
2009-07-04 7:42 ` Herbert Xu
2009-07-04 9:09 ` Herbert Xu
2009-07-05 3:26 ` Herbert Xu
2009-07-05 3:34 ` Herbert Xu
2009-08-18 1:47 ` David Miller
2009-08-19 3:19 ` Herbert Xu
2009-08-19 3:34 ` David Miller
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