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authorAlex Williamson <alex.williamson@redhat.com>2017-06-28 22:50:05 +0300
committerAlex Williamson <alex.williamson@redhat.com>2017-06-28 22:50:05 +0300
commit5d6dee80a1e94cc284d03e06d930e60e8d3ecf7d (patch)
tree58129874a688c31b0c110e85b1af920fd8474018 /Documentation
parente323369b2e204da4dc771bbddceef986f4bf85d5 (diff)
downloadlinux-5d6dee80a1e94cc284d03e06d930e60e8d3ecf7d.tar.xz
vfio: New external user group/file match
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> Cc: stable@vger.kernel.org
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