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Re: [Xen-devel] [PATCH] Skip vcpu_hotplug for VCPU 0 in smp_resume
| To: | Brendan Cully <brendan@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] Skip vcpu_hotplug for VCPU 0 in smp_resume |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 31 Mar 2009 18:35:27 +0100 |
| Cc: | "andy@xxxxxxxxx" <andy@xxxxxxxxx>, kmansley@xxxxxxxxxxxxxx |
| Delivery-date: | Tue, 31 Mar 2009 10:35:54 -0700 |
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| In-reply-to: | <20090331172423.GA70062@xxxxxxxxxxxx> |
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| Thread-topic: | [Xen-devel] [PATCH] Skip vcpu_hotplug for VCPU 0 in smp_resume |
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On 31/03/2009 18:24, "Brendan Cully" <brendan@xxxxxxxxx> wrote: > The other is in the netfront accelerator. It tears down a xenstore > watch on the accelerator path at every suspend, and adds the watch > back on resume. As with any xenstore interaction, this can > occasionally take a very long time. I'm going from faulty memory here, > but I didn't think it was necessary to tear down and restore watches > across suspend. Would it make sense to move the watch remove and add > into the resume hook (taking it completely out of suspend and > suspend_cancel)? They have to be renewed on full resume, but of course they do not get reset across a cancelled suspend. Kieran may be able to advise on changing the net accel code. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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