diff options
| author | Alex Williamson <[email protected]> | 2017-06-19 09:10:32 -0600 |
|---|---|---|
| committer | Alex Williamson <[email protected]> | 2017-06-28 13:49:38 -0600 |
| commit | 811642d8d8a82c0cce8dc2debfdaf23c5a144839 (patch) | |
| tree | 8b64ef6d040f88ec61d6c12c82ebdb43843c3712 /tools/perf/scripts/python/Perf-Trace-Util/Context.c | |
| parent | 7b3a10df1d4bd8a83934897442370221b4cd631b (diff) | |
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 <[email protected]>
Reviewed-by: Eric Auger <[email protected]>
Tested-by: Eric Auger <[email protected]>
Cc: [email protected]
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/Context.c')
0 files changed, 0 insertions, 0 deletions