linux-kernel - [PATCH 0/3 v2] lib/percpu_counter, cpu/hotplug: Cure the cpu_dying

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Message-Id: <cover.1705101789.git.dennis@kernel.org>
Date: Fri, 12 Jan 2024 15:36:45 -0800
From: Dennis Zhou <dennis@...nel.org>
To: Tejun Heo <tj@...nel.org>,
	Christoph Lameter <cl@...ux.com>,
	Thomas Gleixner <tglx@...utronix.de>
Cc: Peter Zijlstra <peterz@...radead.org>,
	Valentin Schneider <vschneid@...hat.com>,
	Dave Chinner <dchinner@...hat.com>,
	Yury Norov <yury.norov@...il.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Ye Bin <yebin10@...wei.com>,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Dennis Zhou <dennis@...nel.org>
Subject: [PATCH 0/3 v2] lib/percpu_counter, cpu/hotplug: Cure the cpu_dying_mask woes

Hi everyone,

This is a respin of Thomas' series [1] against v6.7-rc4. Largely it's
the same minus a slight change in percpu_counter.c for batch
percpu_counters and updating __percpu_counter_limited_add().

I don't think we reached an alternative resolution here so I can queue
this up and give it some soak time in for-next.

[1] https://lore.kernel.org/lkml/20230414162755.281993820@linutronix.de/

Thanks,
Dennis

Dennis Zhou (2):
  lib/percpu_counter: Fix CPU hotplug handling
  cpu/hotplug: Get rid of cpu_dying_mask

Thomas Gleixner (1):
  cpu/hotplug: Remove export of cpu_active_mask and cpu_dying_mask

 include/linux/cpuhotplug.h |  2 +-
 include/linux/cpumask.h    | 21 ------------
 kernel/cpu.c               | 45 +++++++++++++++++++++-----
 kernel/sched/core.c        |  4 +--
 kernel/smpboot.h           |  2 ++
 lib/percpu_counter.c       | 65 ++++++++++++++++----------------------
 6 files changed, 70 insertions(+), 69 deletions(-)

-- 
2.39.1