linux-kernel - [PATCH v2 0/12]

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Message-ID: <eea8d42f-6d2d-485b-9bb9-4eb77a0e1f95@paulmck-laptop>
Date: Mon, 31 Mar 2025 14:02:52 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: rcu@...r.kernel.org, Joel Fernandes <joelagnelf@...dia.com>
Cc: linux-kernel@...r.kernel.org, kernel-team@...a.com, rostedt@...dmis.org
Subject: [PATCH v2 0/12]

Hello!

The following series improves testing of SRCU-fast and SRCU up/down,
deprecates SRCU-lite, enables torture.sh to skip non-debug testing,
and adds testing for Rust's RCU bindings.  The Rust RCU patch is very
much in RFC state, but I am posting it anyway for wider exposure.

1.	Make srcu_lockdep.sh check kernel Kconfig.

2.	Make srcu_lockdep.sh check reader-conflict handling.

3.	Split out beginning and end from rcu_torture_one_read().

4.	Make torture.sh --do-rt use CONFIG_PREEMPT_RT.

5.	Add tests for SRCU up/down reader primitives.

6.	Pull rcu_torture_updown() loop body into new function.

7.	Comment invocations of tick_dep_set_task().

8.	Complain if an ->up_read() is delayed more than 10 seconds.

9.	Check for ->up_read() without matching ->down_read().

10.	Deprecate srcu_read_lock_lite() and srcu_read_unlock_lite().

11.	Add --do-{,no-}normal to torture.sh.

12.	Add testing of RCU's Rust bindings to torture.sh.  (RFC)

Changes since v1:

o	Apply Z Qiang feedback.

o	Add SRCU-lite deprecation, torture.sh --do-{,no-}normal, and
	testing of RCU's Rust bindings.

https://lore.kernel.org/all/4bf081c8-9299-4ee3-b337-d5b751cef6be@paulmck-laptop/

						Thanx, Paul

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

 b/kernel/rcu/rcutorture.c                                |  124 ++++--
 b/scripts/checkpatch.pl                                  |    2 
 b/tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh |   11 
 b/tools/testing/selftests/rcutorture/bin/torture.sh      |   12 
 kernel/rcu/rcutorture.c                                  |  298 ++++++++++++---
 tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh   |   31 +
 tools/testing/selftests/rcutorture/bin/torture.sh        |   75 +++
 7 files changed, 457 insertions(+), 96 deletions(-)