linux-kernel - [PATCH rcu 0/4] RCU stall updates for v6.12

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Message-ID: <20240816061050.GA46994@neeraj.linux>
Date: Fri, 16 Aug 2024 11:40:50 +0530
From: Neeraj Upadhyay <Neeraj.Upadhyay@...nel.org>
To: rcu@...r.kernel.org
Cc: paulmck@...nel.org, joel@...lfernandes.org, frederic@...nel.org,
	boqun.feng@...il.com, urezki@...il.com,
	linux-kernel@...r.kernel.org, kernel-team@...a.com,
	rostedt@...dmis.org, takakura@...inux.co.jp
Subject: [PATCH rcu 0/4] RCU stall updates for v6.12

Hello,

This series contains following RCU stall updates for v6.12:

1. Abbreviate RCU CPU stall warnings during CSD-lock stalls, courtesy of
   Paul E. McKenney.

2. Allow dump_cpu_task() to be called without disabling preemption,
   courtesy of Ryo Takakura.

Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/neeraj.upadhyay/linux-rcu.git/log/?h=rcustall.15.08.24a
(rebased on top of csd.lock.15.08.24a because of commit dependency on commit ac9d45544cd5 "locking/csd_lock:
 Provide an indication of ongoing CSD-lock stall")


- Neeraj


Paul E. McKenney (3):
  rcu: Summarize RCU CPU stall warnings during CSD-lock stalls
  rcu: Extract synchronize_rcu_expedited_stall() from
    synchronize_rcu_expedited_wait()
  rcu: Summarize expedited RCU CPU stall warnings during CSD-lock stalls

Ryo Takakura (1):
  rcu: Let dump_cpu_task() be used without preemption disabled

 .../admin-guide/kernel-parameters.txt         |   4 +
 kernel/rcu/tree_exp.h                         | 113 ++++++++++--------
 kernel/rcu/tree_stall.h                       |   8 +-
 kernel/sched/core.c                           |   2 +-
 4 files changed, 74 insertions(+), 53 deletions(-)