linux-kernel - Re: [PATCH v2 0/12]

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Message-ID: <d276472b-3b1f-4d93-89a6-2e2081f403a6@nvidia.com>
Date: Wed, 2 Apr 2025 10:45:32 -0400
From: Joel Fernandes <joelagnelf@...dia.com>
To: paulmck@...nel.org, rcu@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel-team@...a.com, rostedt@...dmis.org
Subject: Re: [PATCH v2 0/12]

Hello Paul,

On 3/31/2025 5:02 PM, Paul E. McKenney wrote:
> 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.

I will pull these into a topic branch, thanks. Since 6.15 -rc1 is not yet out, I
will keep it in the topic/integration branch for my testing and then rebase onto
-rc1 for the linux-next testing once -rc1 is out.

Thanks!

 - Joel


> 
> 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(-)