alistair23-linux/drivers/vfio
Alex Williamson 811642d8d8 vfio: Fix group release deadlock
If vfio_iommu_group_notifier() acquires a group reference and that
reference becomes the last reference to the group, then vfio_group_put
introduces a deadlock code path where we're trying to unregister from
the iommu notifier chain from within a callout of that chain.  Use a
work_struct to release this reference asynchronously.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Cc: stable@vger.kernel.org
2017-06-28 13:49:38 -06:00
..
mdev vfio/mdev: Use a module softdep for vfio_mdev 2017-02-08 13:13:25 -07:00
pci vfio/pci: Add Intel XXV710 to hidden INTx devices 2017-06-13 09:22:57 -06:00
platform vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() 2016-11-17 08:33:20 -07:00
Kconfig vfio: Fix build break when SPAPR_TCE_IOMMU=n 2017-02-08 13:13:25 -07:00
Makefile vfio: Mediated device Core driver 2016-11-17 08:24:48 -07:00
vfio.c vfio: Fix group release deadlock 2017-06-28 13:49:38 -06:00
vfio_iommu_spapr_tce.c powerpc updates for 4.12 part 1. 2017-05-05 11:36:44 -07:00
vfio_iommu_type1.c vfio/type1: Reduce repetitive calls in vfio_pin_pages_remote() 2017-04-18 15:01:15 -06:00
vfio_spapr_eeh.c drivers/vfio: Support EEH error injection 2015-05-12 20:33:35 +10:00
virqfd.c vfio: Split virqfd into a separate module for vfio bus drivers 2015-03-17 08:33:38 -06:00