linux-kernel - [GIT PULL] sched/urgent for v5.16-rc1

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Date:   Sun, 14 Nov 2021 12:20:52 +0100
From:   Borislav Petkov <bp@...e.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 v5.16-rc1

Hi Linus,

please pull sched/urgent fixes for v5.16-rc1.

Thx.

---

The following changes since commit debe436e77c72fcee804fb867f275e6d31aa999c:

  Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 (2021-11-10 17:05:37 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/sched_urgent_for_v5.16_rc1

for you to fetch changes up to a8b76910e465d718effce0cad306a21fa4f3526b:

  preempt: Restore preemption model selection configs (2021-11-11 13:09:33 +0100)

----------------------------------------------------------------
- Avoid touching ~100 config files in order to be able to select
the preemption model

- clear cluster CPU masks too, on the CPU unplug path

- prevent use-after-free in cfs

- Prevent a race condition when updating CPU cache domains

- Factor out common shared part of smp_prepare_cpus() into a common
helper which can be called by both baremetal and Xen, in order to fix a
booting of Xen PV guests

----------------------------------------------------------------
Boris Ostrovsky (1):
      x86/smp: Factor out parts of native_smp_prepare_cpus()

Mathias Krause (1):
      sched/fair: Prevent dead task groups from regaining cfs_rq's

Valentin Schneider (1):
      preempt: Restore preemption model selection configs

Vincent Donnefort (1):
      sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()

Wang ShaoBo (1):
      arch_topology: Fix missing clear cluster_cpumask in remove_cpu_topology()

 arch/x86/include/asm/smp.h   |  1 +
 arch/x86/kernel/smpboot.c    | 18 ++++++++++-----
 arch/x86/xen/smp_pv.c        | 12 ++--------
 drivers/base/arch_topology.c |  2 ++
 include/linux/kernel.h       |  2 +-
 include/linux/vermagic.h     |  2 +-
 init/Makefile                |  2 +-
 kernel/Kconfig.preempt       | 42 +++++++++++++++++------------------
 kernel/sched/autogroup.c     |  2 +-
 kernel/sched/core.c          | 53 ++++++++++++++++++++++++++++++++++----------
 kernel/sched/fair.c          |  4 ++--
 kernel/sched/rt.c            | 12 +++++++---
 kernel/sched/sched.h         |  3 ++-
 13 files changed, 96 insertions(+), 59 deletions(-)

-- 
Regards/Gruss,
    Boris.

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