Re: [PATCH v4 2/5] xen/pciback: Don't deadlock when unbinding.

[Konrad Rzeszutek Wilk]

> >--- a/drivers/xen/xen-pciback/pci_stub.c
> >+++ b/drivers/xen/xen-pciback/pci_stub.c
> >@@ -250,6 +250,8 @@ struct pci_dev *pcistub_get_pci_dev(struct xen_pcibk_device *pdev,
> >   *  - 'echo BDF > unbind' with a guest still using it. See pcistub_remove
> >   *
> >   *  As such we have to be careful.
> >+ *
> >+ *  To make this easier, the caller has to hold the device lock.
> 
> Should we assert that the lock is being held?

Yes of course we should. Thank you!
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