linux-kernel - [PATCH v2 0/5] Miscellaneous RCU updates for v6.19

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Message-ID: <cf8b57e0-1803-45e9-a217-9c9aeb64a2f9@paulmck-laptop>
Date: Wed, 5 Nov 2025 12:19:51 -0800
From: "Paul E. McKenney" <paulmck@...nel.org>
To: rcu@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel-team@...a.com, rostedt@...dmis.org
Subject: [PATCH v2 0/5] Miscellaneous RCU updates for v6.19

Hello!

This series provides miscellaneous RCU updates:

1.	Fix memory leak in param_set_cpumask(), courtesy of Wang Liang.

2.	use WRITE_ONCE() for ->next and ->pprev of hlist_nulls, courtesy
	of Xuanqiang Luo.

3.	Add kvm-series.sh to test commit/scenario combination.

4.	Permit kvm-again.sh to re-use the build directory.

5.	Remove redundant rcutorture_one_extend() from
	rcu_torture_one_read().

Changes since v1:

o	Make kvm-again.sh able to reuse the rcutorture res directory
	in support of upcoming parallel execution of kvm-series.sh
	guest OSes.  This is #3 above.

o	Remove a redundant call to rcutorture_one_extend().  This is
	#4 above.

o	Add the SPDX line to kvm-again.sh and remove a trailing space
	character from the comment header.

						Thanx, Paul

------------------------------------------------------------------------

 include/linux/rculist_nulls.h                        |    6 
 kernel/locking/locktorture.c                         |    8 -
 kernel/rcu/rcutorture.c                              |    4 
 tools/testing/selftests/rcutorture/bin/kvm-again.sh  |   56 ++++++---
 tools/testing/selftests/rcutorture/bin/kvm-series.sh |  116 +++++++++++++++++++
 5 files changed, 166 insertions(+), 24 deletions(-)