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| author |   Alex Williamson <alex.williamson@redhat.com> | 2013-06-10 16:40:57 -0600 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2013-07-24 16:36:41 -0600 |
| commit | d24cdbfd28b7e0ffecb1e281d73e73c03a57f734 (patch) | |
| tree | 5121604d0025974356f09bb0027e018f1be05e03 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | vfio: Ignore sprurious notifies (diff) | |
| download | linux-dev-d24cdbfd28b7e0ffecb1e281d73e73c03a57f734.tar.xz linux-dev-d24cdbfd28b7e0ffecb1e281d73e73c03a57f734.zip | |
vfio-pci: Avoid deadlock on remove
If an attempt is made to unbind a device from vfio-pci while that
device is in use, the request is blocked until the device becomes
unused. Unfortunately, that unbind path still grabs the device_lock,
which certain things like __pci_reset_function() also want to take.
This means we need to try to acquire the locks ourselves and use the
pre-locked version, __pci_reset_function_locked().
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions