linux-kernel - [GIT PULL] sched_ext: Fixes for v6.13-rc6

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Message-ID: <Z4GnC58Ms1ERkbQD@slm.duckdns.org>
Date: Fri, 10 Jan 2025 13:02:35 -1000
From: Tejun Heo <tj@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, David Vernet <void@...ifault.com>,
	Andrea Righi <arighi@...dia.com>,
	Changwoo Min <changwoo@...lia.com>
Subject: [GIT PULL] sched_ext: Fixes for v6.13-rc6

The following changes since commit ce2b93fc1dfa1c82f2576aa571731c4e5dcc8dd7:

  sched_ext: Fix dsq_local_on selftest (2024-12-24 14:09:50 -1000)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git/ tags/sched_ext-for-6.13-rc6-fixes

for you to fetch changes up to a2a3374c47c428c0edb0bbc693638d4783f81e31:

  sched_ext: idle: Refresh idle masks during idle-to-idle transitions (2025-01-10 12:40:42 -1000)

----------------------------------------------------------------
sched_ext: Fixes for v6.13-rc6

- Fix corner case bug where ops.dispatch() couldn't extend the execution of
  the current task if SCX_OPS_ENQ_LAST is set.

- Fix ops.cpu_release() not being called when a SCX task is preempted by a
  higher priority sched class task.

- Fix buitin idle mask being incorrectly left as busy after an idle CPU is
  picked and kicked.

- scx_ops_bypass() was unnecessarily using rq_lock() which comes with rq
  pinning related sanity checks which could trigger spuriously. Switch to
  raw_spin_rq_lock().

----------------------------------------------------------------
Andrea Righi (1):
      sched_ext: idle: Refresh idle masks during idle-to-idle transitions

Changwoo Min (1):
      sched_ext: Replace rq_lock() to raw_spin_rq_lock() in scx_ops_bypass()

Henry Huang (1):
      sched_ext: keep running prev when prev->scx.slice != 0

Honglei Wang (1):
      sched_ext: switch class when preempted by higher priority scheduler

 kernel/sched/ext.c  | 87 +++++++++++++++++++++++++++++++++++++++++------------
 kernel/sched/ext.h  |  8 ++---
 kernel/sched/idle.c |  5 +--
 3 files changed, 74 insertions(+), 26 deletions(-)

-- 
tejun