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cpus: Properly release the iothread lock when killing a dummy VCPU 

This enables CPU unplug under qtest.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190218092202.26683-2-david@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Hildenbrand 2019-02-18 10:21:57 +01:00 committed by David Gibson
parent 27461d69a0
commit d40bfcbbbb
1 changed files with 1 additions and 0 deletions
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cpus.c
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@ -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