From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 16 Oct 2024 02:47:19 +0000 (-0700)
Subject: Merge tag 'sched_ext-for-6.12-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel... 
X-Git-Tag: v6.12-rc4~42
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=dff6584301ddeb147ae306b140ccf2e128e29030;p=linux-2.6-block.git

Merge tag 'sched_ext-for-6.12-rc3-fixes' of git://git./linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - More issues reported in the enable/disable paths on large machines
   with many tasks due to scx_tasks_lock being held too long. Break up
   the task iterations

 - Remove ops.select_cpu() dependency in bypass mode so that a
   misbehaving implementation can't live-lock the machine by pushing all
   tasks to few CPUs in bypass mode

 - Other misc fixes

* tag 'sched_ext-for-6.12-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: Remove unnecessary cpu_relax()
  sched_ext: Don't hold scx_tasks_lock for too long
  sched_ext: Move scx_tasks_lock handling into scx_task_iter helpers
  sched_ext: bypass mode shouldn't depend on ops.select_cpu()
  sched_ext: Move scx_buildin_idle_enabled check to scx_bpf_select_cpu_dfl()
  sched_ext: Start schedulers with consistent p->scx.slice values
  Revert "sched_ext: Use shorter slice while bypassing"
  sched_ext: use correct function name in pick_task_scx() warning message
  selftests: sched_ext: Add sched_ext as proper selftest target
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dff6584301ddeb147ae306b140ccf2e128e29030