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Re: [Xen-devel] [PATCH 4/4] [Net] Support accelerated network plugin mod

from [Stephen Hemminger] [Permanent Link][Original]
To: "Zhu Han" <schumi.han@xxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 4/4] [Net] Support accelerated network plugin modules
From: Stephen Hemminger <shemminger@xxxxxxxxxxxxxxxxxxxx>
Date: Fri, 15 Jun 2007 09:06:14 -0700
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On Fri, 15 Jun 2007 11:59:43 -0400
"Zhu Han" <schumi.han@xxxxxxxxx> wrote:

> Hi, Kieran,
> 
> I'm just wonder why you try to acquire the lock and increase the
> hooks_usecount each time when you use the hook routine. Is there any
> generic ways to synchronze the code path using hook routines and
> netfront_accelerator_unloaded, considering you can synchronize the
> 

Learn to use RCU for this. It would reduce the lock overhead.

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