WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 		  
Home Products Support Community News
 
   
 

xen-devel

[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

[Xen-devel] Re: [PATCH 3/4] [Net] Support Xen accelerated network plugin

from [Andi Kleen] [Permanent Link][Original]
To: Kieran Mansley <kmansley@xxxxxxxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH 3/4] [Net] Support Xen accelerated network plugin modules
From: Andi Kleen <andi@xxxxxxxxxxxxxx>
Date: 25 May 2007 08:53:12 +0200
Cc: muli@xxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, Stephen Hemminger <shemminger@xxxxxxxxxxxxxxxxxxxx>, herbert@xxxxxxxxxxxxxxxxxxx
Delivery-date: Fri, 25 May 2007 09:40:18 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <1179818108.4145.18.camel@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <1179494208.14376.10.camel@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <20070521105258.7988fd6e@freepuppy> <1179818108.4145.18.camel@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 
Kieran Mansley <kmansley@xxxxxxxxxxxxxx> writes:

> RCU on its own wouldn't
> prevent the accelerated plugin being unloaded while netfront was using
> one of the hooks. 

Note that module unload does always does a stop_machine() which is much 
stronger than normal RCU. As long as you don't sleep and cannot be preemptable
it should be always safe.

-Andi

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
[More with this subject...]
<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  Re: [Xen-devel] [PATCH] Do not destroy domains that timeout when shutting down, Keir Fraser
Next by Date:  [Xen-devel] Issues Related to GCC Compiler, Huang2, Wei
Previous by Thread:  Re: [Xen-devel] Re: [PATCH 3/4] [Net] Support Xen accelerated network plugin modules, Kieran Mansley
Next by Thread:  [Xen-devel] Re: [PATCH 3/4] [Net] Support Xen accelerated network plugin modules, Stephen Hemminger
Indexes:  [Date] [Thread] [Top] [All Lists]
 
   

Copyright , Citrix Systems Inc. All rights reserved. Legal and Privacy