Re: [Qemu-devel] [PATCH v2 1/6] cpus: Properly release the iothread lock when killing a dummy VCPU

[David Gibson <david@gibson.dropbear.id.au>]

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On Fri, Feb 15, 2019 at 02:30:00PM +0100, David Hildenbrand wrote:
> This enables CPU unplug under qtest.
> 
> Signed-off-by: David Hildenbrand <david@redhat.com>

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

> ---
>  cpus.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/cpus.c b/cpus.c
> index 154daf57dc..e83f72b48b 100644
> --- a/cpus.c
> +++ b/cpus.c
> @@ -1333,6 +1333,7 @@ static void *qemu_dummy_cpu_thread_fn(void *arg)
>          qemu_wait_io_event(cpu);
>      } while (!cpu->unplug);
>  
> +    qemu_mutex_unlock_iothread();
>      rcu_unregister_thread();
>      return NULL;
>  #endif

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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