Merge tag 'sched_ext-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel...

Merge tag 'sched_ext-for-6.16-rc6-fixes' of git://git./linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - Fix handling of migration disabled tasks in default idle selection

 - update_locked_rq() called __this_cpu_write() spuriously with NULL
   when @rq was not locked. As the writes were spurious, it didn't break
   anything directly. However, the function could be called in a
   preemptible leading to a context warning in __this_cpu_write(). Skip
   the spurious NULL writes.

 - Selftest fix on UP

* tag 'sched_ext-for-6.16-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: idle: Handle migration-disabled tasks in idle selection
  sched/ext: Prevent update_locked_rq() calls with NULL rq
  selftests/sched_ext: Fix exit selftest hang on UP