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Re: [Xen-devel] [PATCH] Make XEN_DOMCTL_destroydomain hypercall return e

To: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] Make XEN_DOMCTL_destroydomain hypercall return error
From: Keir Fraser <keir@xxxxxxxxxxxxx>
Date: Thu, 09 Aug 2007 11:18:05 +0100
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On 9/8/07 11:09, "Isaku Yamahata" <yamahata@xxxxxxxxxxxxx> wrote:

> Thank you for reviewing.
> test_and_set_bool(d->is_dying) is used to avoid race, isn't it?
> But the updated patch drops it so that it would be racy.

The only caller is serailised on domctl_lock, so the test_and_set_bool() was
not really necessary.

 -- Keir


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