From: Jarek Poplawski <jarkao2@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: auke-jan.h.kok@intel.com, gallatin@myri.com,
joonwpark81@gmail.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, jgarzik@pobox.com,
shemminger@linux-foundation.org, jesse.brandeburg@intel.com
Subject: Re: [RFC] net: napi fix
Date: Thu, 13 Dec 2007 23:58:59 +0100 [thread overview]
Message-ID: <4761B933.4030008@gmail.com> (raw)
In-Reply-To: <20071213.143425.142750733.davem@davemloft.net>
David Miller wrote, On 12/13/2007 11:34 PM:
> From: Jarek Poplawski <jarkao2@gmail.com>
> Date: Thu, 13 Dec 2007 23:28:41 +0100
>
>> ...I'm afraid I can't understand: I mean doing the same but without
>> passing this info with 'work == weight': if driver sends this info,
>> why it can't instead call something like napi_continue() with
>> this list_move_tail() (and probably additional local_irq_disable()/
>> enble() - but since it's unlikely()?) which looks much more readable,
>> and saves one whole unlikely if ()?
>
> Because the poll list is private to net_rx_action() and we don't
> want to expose implementation details like that to every
> ->poll() implementation.
So, it seems 'we' failed e.g. exposing napi_complete()...
OK, no offense, I'll only mention at the end that there is
always a possibility to redefine such a function to {} with any
change of implementation.
Jarek P.
next prev parent reply other threads:[~2007-12-13 22:55 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-12 17:29 [RFC] net: napi fix Andrew Gallatin
2007-12-12 17:38 ` David Miller
2007-12-12 17:40 ` Andrew Gallatin
2007-12-12 18:41 ` Kok, Auke
2007-12-13 7:41 ` Joonwoo Park
2007-12-13 14:13 ` Andrew Gallatin
2007-12-13 14:19 ` David Miller
2007-12-13 16:45 ` Kok, Auke
2007-12-13 18:22 ` Stephen Hemminger
2007-12-13 19:02 ` Andrew Gallatin
2007-12-13 19:09 ` David Miller
2007-12-13 19:35 ` Stephen Hemminger
2007-12-13 20:38 ` David Miller
2007-12-14 2:06 ` Joonwoo Park
2007-12-13 13:49 ` Jarek Poplawski
2007-12-13 13:50 ` David Miller
2007-12-13 14:14 ` Jarek Poplawski
2007-12-13 20:16 ` Jarek Poplawski
2007-12-13 20:37 ` David Miller
2007-12-13 20:41 ` Stephen Hemminger
2007-12-13 21:55 ` Jarek Poplawski
2007-12-13 22:28 ` Jarek Poplawski
2007-12-13 22:34 ` David Miller
2007-12-13 22:58 ` Jarek Poplawski [this message]
2007-12-20 9:52 ` Robert Olsson
2007-12-20 11:22 ` David Miller
-- strict thread matches above, loose matches on Subject: below --
2007-12-12 4:01 [PATCH 6/7] [NETDEV]: tehuti Fix possible causing oops of net_rx_action Joonwoo Park
2007-12-12 5:39 ` Stephen Hemminger
2007-12-12 5:46 ` [RFC] net: napi fix Stephen Hemminger
2007-12-12 6:05 ` Joonwoo Park
2007-12-12 15:22 ` David Miller
2007-12-12 15:21 ` David Miller
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