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| author |   Alex Williamson <alex.williamson@redhat.com> | 2020-11-02 15:02:00 -0700 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2020-11-03 11:07:40 -0700 |
| commit | 38565c93c8a1306dc5f245572a545fbea908ac41 (patch) | |
| tree | 1411664b0374b6b9726259e95a9f2ca25a0896e7 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | vfio/fsl-mc: Make vfio_fsl_mc_irqs_allocate static (diff) | |
| download | wireguard-linux-38565c93c8a1306dc5f245572a545fbea908ac41.tar.xz wireguard-linux-38565c93c8a1306dc5f245572a545fbea908ac41.zip | |
vfio/pci: Implement ioeventfd thread handler for contended memory lock
The ioeventfd is called under spinlock with interrupts disabled,
therefore if the memory lock is contended defer code that might
sleep to a thread context.
Fixes: bc93b9ae0151 ("vfio-pci: Avoid recursive read-lock usage")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209253#c1
Reported-by: Ian Pilcher <arequipeno@gmail.com>
Tested-by: Ian Pilcher <arequipeno@gmail.com>
Tested-by: Justin Gatzen <justin.gatzen@gmail.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions