Alex Williamson e014e9444a vfio: Protect vfio_dev_present against device_del ... vfio_dev_present is meant to give us a wait_event callback so that we can block removing a device from vfio until it becomes unused. The root of this check depends on being able to get the iommu group from the device. Unfortunately if the BUS_NOTIFY_DEL_DEVICE notifier has fired then the device-group reference is no longer searchable and we fail the lookup. We don't need to go to such extents for this though. We have a reference to the device, from which we can acquire a reference to the group. We can then use the group reference to search for the device and properly block removal. Signed-off-by: Alex Williamson <alex.williamson@redhat.com>		2013-02-14 14:02:13 -07:00
..
pci	vfio-pci: Cleanup BAR access	2013-02-14 14:02:12 -07:00
Kconfig	vfio: Add PCI device driver	2012-07-31 08:16:24 -06:00
Makefile
vfio_iommu_type1.c
vfio.c	vfio: Protect vfio_dev_present against device_del	2013-02-14 14:02:13 -07:00