linux-kernel - [GIT PULL] sched_ext: Fixes for v6.19-rc1

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Message-ID: <4f9a656c7143b04e974d447e1b3660cf@kernel.org>
Date: Mon, 15 Dec 2025 06:56:50 -1000
From: Tejun Heo <tj@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: David Vernet <void@...ifault.com>, Andrea Righi <arighi@...dia.com>,
 Changwoo Min <changwoo@...lia.com>, Emil Tsalapatis <emil@...alapatis.com>,
 sched-ext@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [GIT PULL] sched_ext: Fixes for v6.19-rc1

Hi,

The following changes since commit c2f2b01b74be8b40a2173372bcd770723f87e7b2:

  Merge tag 'i3c/for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux (2025-12-08 11:25:14 +0900)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git tags/sched_ext-for-6.19-rc1-fixes

for you to fetch changes up to bb27226f0d00588ac53be8825e021ae80aa43371:

  sched_ext: Remove unused code in the do_pick_task_scx() (2025-12-15 05:53:49 -1000)

----------------------------------------------------------------
sched_ext: Fixes for v6.19-rc1

- Fix memory leak when destroying helper kthread workers during scheduler
  disable.

- Fix bypass depth accounting on scx_enable() failure which could leave
  the system permanently in bypass mode.

- Fix missing preemption handling when moving tasks to local DSQs via
  scx_bpf_dsq_move().

- Misc fixes including NULL check for put_prev_task(), flushing stdout in
  selftests, and removing unused code.

----------------------------------------------------------------
Emil Tsalapatis (1):
      selftests/sched_ext: flush stdout before test to avoid log spam

John Stultz (1):
      sched/ext: Avoid null ptr traversal when ->put_prev_task() is called with NULL next

Tejun Heo (3):
      sched_ext: Fix bypass depth leak on scx_enable() failure
      sched_ext: Factor out local_dsq_post_enq() from dispatch_enqueue()
      sched_ext: Fix missing post-enqueue handling in move_local_task_to_local_dsq()

Zqiang (2):
      sched_ext: Fix the memleak for sch->helper objects
      sched_ext: Remove unused code in the do_pick_task_scx()

 kernel/sched/ext.c                         | 72 ++++++++++++++++++++----------
 tools/testing/selftests/sched_ext/runner.c |  8 ++++
 2 files changed, 56 insertions(+), 24 deletions(-)

Thanks.

--
tejun