[PATCH v2 0/7] drm/sched: Fix memory leaks with cancel_job() callback

[Philipp Stanner <phasta@kernel.org>]

Changes in v2:
  - Add new unit test to test cancel_job()'s behavior. (Tvrtko)
  - Add RB from Maíra

Changes since the RFC:
  - Rename helper function for drm_sched_fini(). (Tvrtko)
  - Add Link to Tvrtko's RFC patch to patch 1.


Since a long time, drm_sched_fini() can leak jobs that are still in
drm_sched.pending_list.

This series solves the leaks in a backwards-compatible manner by adding
a new, optional callback. If that callback is implemented, the scheduler
uses it to cancel all jobs from pending_list and then frees them.

Philipp Stanner (7):
  drm/sched: Avoid memory leaks with cancel_job() callback
  drm/sched/tests: Implement cancel_job() callback
  drm/sched/tests: Add unit test for cancel_job()
  drm/sched: Warn if pending list is not empty
  drm/nouveau: Make fence container helper usable driver-wide
  drm/nouveau: Add new callback for scheduler teardown
  drm/nouveau: Remove waitque for sched teardown

 drivers/gpu/drm/nouveau/nouveau_fence.c       | 35 ++++++----
 drivers/gpu/drm/nouveau/nouveau_fence.h       |  7 ++
 drivers/gpu/drm/nouveau/nouveau_sched.c       | 35 ++++++----
 drivers/gpu/drm/nouveau/nouveau_sched.h       |  9 +--
 drivers/gpu/drm/nouveau/nouveau_uvmm.c        |  8 +--
 drivers/gpu/drm/scheduler/sched_main.c        | 37 +++++++----
 .../gpu/drm/scheduler/tests/mock_scheduler.c  | 66 +++++++------------
 drivers/gpu/drm/scheduler/tests/tests_basic.c | 43 ++++++++++++
 include/drm/gpu_scheduler.h                   | 18 +++++
 9 files changed, 165 insertions(+), 93 deletions(-)

-- 
2.49.0