[GIT PULL] sched_ext: Fixes for v7.2-rc3

[Tejun Heo]

Hi Linus,

The following changes since commit f0e6f20cb52b14c2c441f04e21cef0c95d498cac:

  Merge tag 'ntfs3_for_7.2' of https://github.com/Paragon-Software-Group/linux-ntfs3 (2026-06-24 10:05:53 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git tags/sched_ext-for-7.2-rc3-fixes

for you to fetch changes up to 0e2f4ab68a89fad42e0f5a9ff4b740738e7aa1d6:

  sched_ext: Skip ops.set_weight() for disabled tasks (2026-07-10 06:41:28 -1000)

----------------------------------------------------------------
sched_ext: Fixes for v7.2-rc3

- Lifecycle fixes for the new sub-scheduler support: two use-after-frees
  and an enable-failure path that left a half-initialized sub-scheduler
  linked.

- Two dispatch-path locking bugs: a spurious scheduler abort from a
  migration race, and a lockdep splat from stale runqueue-lock tracking.

- Callback and task-state fixes: stale scheduler-owned state on a task
  leaving SCX, a weight callback running after disable, and a bogus
  warning on core-scheduling forced idle.

- On nohz_full, finite-slice tasks could miss the tick that expires their
  slice. Enable it when such a task is picked, with a selftest.

- Smaller fixes: userspace CPU-mask helpers, ratelimited deprecation
  warnings, docs and a sparse annotation.

----------------------------------------------------------------
Andrea Righi (4):
      sched_ext: Reset dsq_vtime and slice when a task leaves SCX
      sched_ext: Preserve rq tracking across local DSQ dispatch
      sched_ext: Enable tick for finite slices on nohz_full
      selftests/sched_ext: Verify nohz_full tick behavior

Breno Leitao (1):
      sched_ext: Avoid flooding the log with deprecation warnings

Kuba Piecuch (2):
      sched_ext: Check remote rq eligibility under task's rq lock
      sched_ext: Skip ops.set_weight() for disabled tasks

Liang Luo (1):
      sched_ext: Documentation: Fix ops table header reference

Tejun Heo (6):
      sched_ext: Annotate ksyncs with __rcu in alloc/free_kick_syncs()
      sched_ext: Pin parent scx_sched across a child sub-scheduler's lifetime
      sched_ext: Don't warn on core-sched forced idle in put_prev_task_scx()
      sched_ext: Record an error on errno-only sub-enable failure
      sched_ext: Fix premature ops->priv publication in scx_alloc_and_add_sched()
      tools/sched_ext: scx - Fix cmask_subset(), cmask_equal() and cmask_weight()

 Documentation/scheduler/sched-ext.rst             |   8 +-
 kernel/sched/ext/ext.c                            | 177 ++++++++---
 kernel/sched/ext/internal.h                       |  23 +-
 tools/sched_ext/include/scx/cid.bpf.h             |  88 ++++--
 tools/testing/selftests/sched_ext/Makefile        |   1 +
 tools/testing/selftests/sched_ext/nohz_tick.bpf.c |  65 ++++
 tools/testing/selftests/sched_ext/nohz_tick.c     | 347 ++++++++++++++++++++++
 7 files changed, 614 insertions(+), 95 deletions(-)
 create mode 100644 tools/testing/selftests/sched_ext/nohz_tick.bpf.c
 create mode 100644 tools/testing/selftests/sched_ext/nohz_tick.c

Thanks.

--
tejun