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linux/drivers/vfio
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Alex Williamson 50f4bed39b vfio: New external user group/file match 
commit 5d6dee80a1 upstream.

At the point where the kvm-vfio pseudo device wants to release its
vfio group reference, we can't always acquire a new reference to make
that happen.  The group can be in a state where we wouldn't allow a
new reference to be added.  This new helper function allows a caller
to match a file to a group to facilitate this.  Given a file and
group, report if they match.  Thus the caller needs to already have a
group reference to match to the file.  This allows the deletion of a
group without acquiring a new reference.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2017-10-12 15:27:55 +01:00
..
pci vfio/pci: Fix integer overflows, bitmask check 2016-11-20 01:17:37 +00:00
Kconfig vfio: always select ANON_INODES 2014-03-27 11:58:58 -06:00
Makefile powerpc/vfio: Implement IOMMU driver for VFIO 2013-06-20 16:55:14 +10:00
vfio.c vfio: New external user group/file match 2017-10-12 15:27:55 +01:00
vfio_iommu_spapr_tce.c powerpc/iommu: Update constant names to reflect their hardcoded page size 2013-12-30 14:17:06 +11:00
vfio_iommu_type1.c vfio/type1: Remove locked page accounting workqueue 2017-08-26 02:14:31 +01:00