kernel_optimize_test/drivers/vfio
Alex Williamson 3be3a074cf vfio-pci: Don't use device_lock around AER interrupt setup
device_lock is much too prone to lockups.  For instance if we have a
pending .remove then device_lock is already held.  If userspace
attempts to modify AER signaling after that point, a deadlock occurs.
eventfd setup/teardown is already protected in vfio with the igate
mutex.  AER is not a high performance interrupt, so we can also use
the same mutex to protect signaling versus setup races.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-01-14 16:12:55 -07:00
..
pci vfio-pci: Don't use device_lock around AER interrupt setup 2014-01-14 16:12:55 -07:00
Kconfig powerpc/vfio: Enable on pSeries platform 2013-06-20 16:55:15 +10:00
Makefile powerpc/vfio: Implement IOMMU driver for VFIO 2013-06-20 16:55:14 +10:00
vfio_iommu_spapr_tce.c powerpc/vfio: Implement IOMMU driver for VFIO 2013-06-20 16:55:14 +10:00
vfio_iommu_type1.c VFIO: vfio_iommu_type1: fix bug caused by break in nested loop 2013-10-11 10:40:46 -06:00
vfio.c vfio: Convert control interface to misc driver 2013-12-19 10:17:13 -07:00