From: Keir Fraser <keir@xensource.com>
To: Kieran Mansley <kmansley@solarflare.com>,
Stephen Hemminger <shemminger@linux-foundation.org>
Cc: <muli@il.ibm.com>, <netdev@vger.kernel.org>,
<xen-devel@lists.xensource.com>, <herbert@gondor.apana.org.au>
Subject: Re: [Xen-devel] Re: [PATCH 3/4] [Net] Support Xen accelerated network plugin modules
Date: Tue, 22 May 2007 08:48:04 +0100 [thread overview]
Message-ID: <C2785EC4.F4E3%keir@xensource.com> (raw)
In-Reply-To: <1179818921.4145.29.camel@moonstone.uk.level5networks.com>
On 22/5/07 08:28, "Kieran Mansley" <kmansley@solarflare.com> wrote:
> On Tue, 2007-05-22 at 08:15 +0100, Kieran Mansley wrote:
>> RCU on its own wouldn't
>> prevent the accelerated plugin being unloaded while netfront was using
>> one of the hooks.
>
> Hmm, actually I think it could be used to do that. I'll take a look.
Eagerly zap the function pointers, then wait one RCU period so every CPU
goes through a quiescent point before unloading the module?
-- Keir
WARNING: multiple messages have this Message-ID (diff)
From: Keir Fraser <keir@xensource.com>
To: Kieran Mansley <kmansley@solarflare.com>,
Stephen Hemminger <shemminger@linux-foundation.org>
Cc: muli@il.ibm.com, netdev@vger.kernel.org,
xen-devel@lists.xensource.com, herbert@gondor.apana.org.au
Subject: Re: [Xen-devel] Re: [PATCH 3/4] [Net] Support Xen accelerated network plugin modules
Date: Tue, 22 May 2007 08:48:04 +0100 [thread overview]
Message-ID: <C2785EC4.F4E3%keir@xensource.com> (raw)
In-Reply-To: <1179818921.4145.29.camel@moonstone.uk.level5networks.com>
On 22/5/07 08:28, "Kieran Mansley" <kmansley@solarflare.com> wrote:
> On Tue, 2007-05-22 at 08:15 +0100, Kieran Mansley wrote:
>> RCU on its own wouldn't
>> prevent the accelerated plugin being unloaded while netfront was using
>> one of the hooks.
>
> Hmm, actually I think it could be used to do that. I'll take a look.
Eagerly zap the function pointers, then wait one RCU period so every CPU
goes through a quiescent point before unloading the module?
-- Keir
next prev parent reply other threads:[~2007-05-22 7:48 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-18 13:16 [PATCH 3/4] [Net] Support Xen accelerated network plugin modules Kieran Mansley
2007-05-21 17:50 ` Stephen Hemminger
2007-05-22 7:00 ` Kieran Mansley
2007-05-21 17:52 ` Stephen Hemminger
2007-05-22 7:15 ` Kieran Mansley
2007-05-22 7:28 ` Kieran Mansley
2007-05-22 7:48 ` Keir Fraser [this message]
2007-05-22 7:48 ` [Xen-devel] " Keir Fraser
2007-05-22 7:59 ` Kieran Mansley
2007-05-22 12:44 ` Kieran Mansley
2007-05-22 14:07 ` Keir Fraser
2007-05-22 14:07 ` Keir Fraser
2007-05-22 14:20 ` Kieran Mansley
2007-05-22 15:05 ` Stephen Hemminger
2007-05-22 16:06 ` Kieran Mansley
2007-05-25 6:53 ` Andi Kleen
2007-05-21 17:54 ` Stephen Hemminger
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