Merge tag 'sched_ext-for-7.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - 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.

* tag 'sched_ext-for-7.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: Skip ops.set_weight() for disabled tasks
  tools/sched_ext: scx - Fix cmask_subset(), cmask_equal() and cmask_weight()
  sched_ext: Fix premature ops->priv publication in scx_alloc_and_add_sched()
  sched_ext: Record an error on errno-only sub-enable failure
  selftests/sched_ext: Verify nohz_full tick behavior
  sched_ext: Enable tick for finite slices on nohz_full
  sched_ext: Preserve rq tracking across local DSQ dispatch
  sched_ext: Documentation: Fix ops table header reference
  sched_ext: Don't warn on core-sched forced idle in put_prev_task_scx()
  sched_ext: Pin parent scx_sched across a child sub-scheduler's lifetime
  sched_ext: Annotate ksyncs with __rcu in alloc/free_kick_syncs()
  sched_ext: Check remote rq eligibility under task's rq lock
  sched_ext: Reset dsq_vtime and slice when a task leaves SCX
  sched_ext: Avoid flooding the log with deprecation warnings

1 files changed, 5 insertions, 3 deletions

diff --git a/Documentation/scheduler/sched-ext.rst b/Documentation/scheduler/sched-ext.rst
index 4b1ffd03f516..2771ea4cc14a 100644
--- a/Documentation/scheduler/sched-ext.rst
+++ b/Documentation/scheduler/sched-ext.rst
@@ -493,8 +493,9 @@ a freshly woken up task gets on a CPU.
 Where to Look
 =============
 
-* ``include/linux/sched/ext.h`` defines the core data structures, ops table
-  and constants.
+* ``include/linux/sched/ext.h`` defines the core data structures and
+  constants, while the ops table (``struct sched_ext_ops``) is defined in
+  ``kernel/sched/ext/internal.h``.
 
 * ``kernel/sched/ext/ext.c`` contains sched_ext core implementation and helpers.
   The functions prefixed with ``scx_bpf_`` can be called from the BPF
@@ -555,7 +556,8 @@ ABI Instability
 ===============
 
 The APIs provided by sched_ext to BPF schedulers programs have no stability
-guarantees. This includes the ops table callbacks and constants defined in
+guarantees. This includes the ops table callbacks defined in
+``kernel/sched/ext/internal.h`` and the constants defined in
 ``include/linux/sched/ext.h``, as well as the ``scx_bpf_`` kfuncs defined in
 ``kernel/sched/ext/ext.c`` and ``kernel/sched/ext/idle.c``.