From: Evgeniy Polyakov <zbr@ioremap.net>
To: Bart Van Assche <bart.vanassche@gmail.com>
Cc: Vladislav Bolkhovitin <vst@vlnb.net>,
linux-scsi@vger.kernel.org,
James Bottomley <James.Bottomley@hansenpartnership.com>,
linux-kernel@vger.kernel.org, scst-devel@lists.sourceforge.net,
netdev@vger.kernel.org
Subject: Re: [PATCH][RFC 23/23]: Support for zero-copy TCP transmit of user space data
Date: Tue, 16 Dec 2008 20:41:22 +0300 [thread overview]
Message-ID: <20081216174122.GB16329@ioremap.net> (raw)
In-Reply-To: <e2e108260812160800h66e525f2p8c6c78b1b73630d1@mail.gmail.com>
Hi Bart.
On Tue, Dec 16, 2008 at 05:00:07PM +0100, Bart Van Assche (bart.vanassche@gmail.com) wrote:
> Any idea whether it would be acceptable to extend "struct sock" with
> one or two pointers to callback functions ? These callback functions
> could be called from skb_release_data() etc. through the "struct sock*
> sk" member of "struct sk_buff".
That's unlikely, since again this will be unused by the all but iscsi
users. But you can be tricky and replace skb destructor with your own
pointer and call 'old' destructor yourself. Its main goal is to adjust
socket memory statistics and since all iscsi sockets are under your full
control, you can play with it. Although this sounds like a hack, with
proper implementation it is not that bad idea. As additional pointer you
can use sk_user_data which is used by rpc socket calls only iirc.
--
Evgeniy Polyakov
next prev parent reply other threads:[~2008-12-16 17:41 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-10 18:26 [PATCH][RFC 0/23] New SCSI target framework (SCST) and 4 target drivers Vladislav Bolkhovitin
2008-12-10 18:28 ` [PATCH][RFC 1/23]: SCST public headers Vladislav Bolkhovitin
2008-12-10 18:30 ` [PATCH][RFC 2/23]: SCST core Vladislav Bolkhovitin
2008-12-10 19:12 ` Sam Ravnborg
2008-12-11 17:28 ` Vladislav Bolkhovitin
2008-12-11 21:09 ` Sam Ravnborg
2008-12-12 19:24 ` Vladislav Bolkhovitin
2008-12-12 21:50 ` Steven Rostedt
[not found] ` <20081212230523.GB4775@ghostprotocols.net>
2008-12-13 1:25 ` Frédéric Weisbecker
2008-12-13 1:27 ` Frédéric Weisbecker
2008-12-13 14:46 ` Vladislav Bolkhovitin
2008-12-14 0:35 ` Frédéric Weisbecker
2008-12-16 21:49 ` Ingo Molnar
2008-12-16 22:13 ` Frédéric Weisbecker
2008-12-16 22:22 ` Ingo Molnar
2008-12-16 23:46 ` Frédéric Weisbecker
2008-12-18 11:45 ` Vladislav Bolkhovitin
2008-12-20 13:06 ` Frédéric Weisbecker
2008-12-23 19:11 ` Vladislav Bolkhovitin
2008-12-27 11:20 ` Ingo Molnar
2008-12-30 17:13 ` Vladislav Bolkhovitin
2008-12-30 21:03 ` Frederic Weisbecker
2008-12-30 21:35 ` Steven Rostedt
2008-12-10 18:34 ` [PATCH][RFC 3/23]: SCST core docs Vladislav Bolkhovitin
2008-12-10 18:36 ` [PATCH][RFC 4/23]: SCST debug support Vladislav Bolkhovitin
2008-12-10 18:37 ` [PATCH][RFC 5/23]: SCST /proc interface Vladislav Bolkhovitin
2008-12-11 20:23 ` Nicholas A. Bellinger
2008-12-12 19:23 ` Vladislav Bolkhovitin
2008-12-10 18:39 ` [PATCH][RFC 6/23]: SCST SGV cache Vladislav Bolkhovitin
2008-12-10 18:40 ` [PATCH][RFC 7/23]: SCST integration into the kernel Vladislav Bolkhovitin
2008-12-10 18:42 ` [PATCH][RFC 8/23]: SCST pass-through backend handlers Vladislav Bolkhovitin
2008-12-10 18:43 ` [PATCH][RFC 9/23]: SCST virtual disk backend handler Vladislav Bolkhovitin
2008-12-10 18:44 ` [PATCH][RFC 10/23]: SCST user space " Vladislav Bolkhovitin
2008-12-10 18:46 ` [PATCH][RFC 11/23]: Makefile for SCST backend handlers Vladislav Bolkhovitin
2008-12-10 18:47 ` [PATCH][RFC 12/23]: Patch to add necessary support for SCST pass-through Vladislav Bolkhovitin
2008-12-10 18:49 ` [PATCH][RFC 13/23]: Export of alloc_io_context() function Vladislav Bolkhovitin
2008-12-11 13:34 ` Jens Axboe
2008-12-11 18:17 ` Vladislav Bolkhovitin
2008-12-11 18:41 ` Jens Axboe
2008-12-11 19:00 ` Vladislav Bolkhovitin
2008-12-11 19:06 ` Jens Axboe
2008-12-12 19:16 ` Vladislav Bolkhovitin
2008-12-10 18:50 ` [PATCH][RFC 14/23]: Necessary functionality in qla2xxx driver to support target mode Vladislav Bolkhovitin
2008-12-10 18:51 ` [PATCH][RFC 15/23]: QLogic target driver Vladislav Bolkhovitin
2008-12-10 18:54 ` [PATCH][RFC 16/23]: Documentation for " Vladislav Bolkhovitin
2008-12-10 18:55 ` [PATCH][RFC 17/23]: InfiniBand SRP " Vladislav Bolkhovitin
2008-12-10 18:57 ` [PATCH][RFC 18/23]: Documentation for " Vladislav Bolkhovitin
2008-12-10 18:58 ` [PATCH][RFC 19/23]: scst_local " Vladislav Bolkhovitin
2008-12-10 19:00 ` [PATCH][RFC 20/23]: Documentation for scst_local driver Vladislav Bolkhovitin
2008-12-10 19:01 ` [PATCH][RFC 21/23]: iSCSI target driver Vladislav Bolkhovitin
2008-12-11 22:55 ` Nicholas A. Bellinger
2008-12-11 22:59 ` Nicholas A. Bellinger
2008-12-12 19:26 ` Vladislav Bolkhovitin
2008-12-13 10:03 ` Nicholas A. Bellinger
2008-12-13 10:11 ` Bart Van Assche
2008-12-13 10:16 ` Nicholas A. Bellinger
2008-12-13 10:27 ` Bart Van Assche
2008-12-13 15:01 ` Vladislav Bolkhovitin
2008-12-13 14:57 ` Vladislav Bolkhovitin
2008-12-10 19:02 ` [PATCH][RFC 22/23]: Documentation for iSCSI-SCST Vladislav Bolkhovitin
2008-12-10 19:04 ` [PATCH][RFC 23/23]: Support for zero-copy TCP transmit of user space data Vladislav Bolkhovitin
2008-12-10 21:45 ` Evgeniy Polyakov
2008-12-11 18:16 ` Vladislav Bolkhovitin
2008-12-11 19:12 ` James Bottomley
2008-12-12 19:25 ` Vladislav Bolkhovitin
2008-12-12 19:37 ` James Bottomley
2008-12-15 17:58 ` Vladislav Bolkhovitin
2008-12-15 23:18 ` Christoph Hellwig
2008-12-16 18:57 ` Vladislav Bolkhovitin
2008-12-18 18:35 ` [RFC]: " Vladislav Bolkhovitin
2008-12-18 18:43 ` David M. Lloyd
2008-12-19 17:37 ` Vladislav Bolkhovitin
2008-12-19 19:07 ` Jens Axboe
2008-12-19 19:17 ` Vladislav Bolkhovitin
2008-12-19 19:27 ` Jens Axboe
2008-12-19 21:58 ` Evgeniy Polyakov
2008-12-23 19:11 ` Vladislav Bolkhovitin
2008-12-19 11:27 ` Andi Kleen
2008-12-19 17:38 ` Vladislav Bolkhovitin
2008-12-19 18:00 ` Andi Kleen
2008-12-19 17:57 ` Vladislav Bolkhovitin
2008-12-16 16:00 ` [PATCH][RFC 23/23]: " Bart Van Assche
2008-12-16 17:41 ` Evgeniy Polyakov [this message]
2008-12-19 20:21 ` Jeremy Fitzhardinge
2008-12-19 22:04 ` Evgeniy Polyakov
2008-12-19 22:21 ` Jeremy Fitzhardinge
2008-12-19 22:33 ` Evgeniy Polyakov
2008-12-20 1:56 ` Jeremy Fitzhardinge
2008-12-20 2:02 ` Herbert Xu
2008-12-20 6:14 ` Jeremy Fitzhardinge
2008-12-20 6:51 ` Herbert Xu
2008-12-20 7:43 ` Jeremy Fitzhardinge
2008-12-20 8:10 ` Herbert Xu
2008-12-20 10:32 ` Evgeniy Polyakov
2008-12-20 19:39 ` Jeremy Fitzhardinge
2008-12-22 0:43 ` Rusty Russell
2008-12-23 19:14 ` Vladislav Bolkhovitin
2008-12-23 19:16 ` Vladislav Bolkhovitin
2008-12-23 21:38 ` Evgeniy Polyakov
2008-12-24 14:37 ` Vladislav Bolkhovitin
2008-12-24 14:44 ` Evgeniy Polyakov
2008-12-24 17:46 ` Vladislav Bolkhovitin
2008-12-24 18:08 ` Evgeniy Polyakov
2008-12-30 17:37 ` Vladislav Bolkhovitin
2008-12-30 21:35 ` Evgeniy Polyakov
2008-12-23 19:13 ` Vladislav Bolkhovitin
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