linux-kernel - Re: [RFC] net: napi fix

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Date:	Thu, 13 Dec 2007 23:28:41 +0100
From:	Jarek Poplawski <jarkao2@...il.com>
To:	David Miller <davem@...emloft.net>
CC:	auke-jan.h.kok@...el.com, gallatin@...i.com, joonwpark81@...il.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	jgarzik@...ox.com, shemminger@...ux-foundation.org,
	jesse.brandeburg@...el.com
Subject: Re: [RFC] net: napi fix

David Miller wrote, On 12/13/2007 09:37 PM:
...

> For example, if we export the list handling widget into the ->poll()
> routines, god help the person who wants to change how the poll list is
> managed in net_rx_action() :-/

...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 ()?

Jarek P.
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