linux-kernel - [GIT PULL] sched/urgent for v6.10

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Message-ID: <20240714093130.GAZpOa8kG3Aq6nfwQi@fat_crate.local>
Date: Sun, 14 Jul 2024 11:31:30 +0200
From: Borislav Petkov <bp@...en8.de>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: x86-ml <x86@...nel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] sched/urgent for v6.10

Hi Linus,

please pull the last three sched urgent fixes for v6.10.

Thx.

---

The following changes since commit f2661062f16b2de5d7b6a5c42a9a5c96326b8454:

  Linux 6.10-rc5 (2024-06-23 17:08:54 -0400)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip tags/sched_urgent_for_v6.10

for you to fetch changes up to ddae0ca2a8fe12d0e24ab10ba759c3fbd755ada8:

  sched: Move psi_account_irqtime() out of update_rq_clock_task() hotpath (2024-07-01 13:01:44 +0200)

----------------------------------------------------------------
- Fix a performance regression when measuring the CPU time of a thread
  (clock_gettime(CLOCK_THREAD_CPUTIME_ID,...)) due to the addition of
  PSI IRQ time accounting in the hotpath

- Fix a task_struct leak due to missing to decrement the refcount when
  the task is enqueued before the timer which is supposed to do that,
  expires

- Revert an attempt to expedite detaching of movable tasks, as finding
  those could become very costly. Turns out the original issue wasn't
  even hit by anyone

----------------------------------------------------------------
John Stultz (1):
      sched: Move psi_account_irqtime() out of update_rq_clock_task() hotpath

Josh Don (1):
      Revert "sched/fair: Make sure to try to detach at least one movable task"

Wander Lairson Costa (1):
      sched/deadline: Fix task_struct reference leak

 kernel/sched/core.c     |  7 +++++--
 kernel/sched/deadline.c |  7 ++++++-
 kernel/sched/fair.c     | 12 +++---------
 kernel/sched/psi.c      | 21 ++++++++++++++++-----
 kernel/sched/sched.h    |  1 +
 kernel/sched/stats.h    | 11 ++++++++---
 6 files changed, 39 insertions(+), 20 deletions(-)


-- 
Regards/Gruss,
    Boris.

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