linux-kernel - Re: [PATCH for 5.1 0/3] Restartable Sequences updates for 5.1

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Date:   Fri, 19 Apr 2019 08:42:08 -0400 (EDT)
From:   Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-api <linux-api@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Andy Lutomirski <luto@...capital.net>,
        Dave Watson <davejwatson@...com>, Paul Turner <pjt@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Russell King <linux@....linux.org.uk>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, Andi Kleen <andi@...stfloor.org>,
        Chris Lameter <cl@...ux.com>, Ben Maurer <bmaurer@...com>,
        rostedt <rostedt@...dmis.org>,
        Josh Triplett <josh@...htriplett.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Joel Fernandes <joelaf@...gle.com>
Subject: Re: [PATCH for 5.1 0/3] Restartable Sequences updates for 5.1

----- On Apr 19, 2019, at 6:41 AM, Ingo Molnar mingo@...nel.org wrote:

> * Mathieu Desnoyers <mathieu.desnoyers@...icios.com> wrote:
> 
>> Those changes aiming at 5.1 include one comment cleanup, the removal of
>> the rseq_len field from the task struct which serves no purpose
>> considering that the struct size is fixed by the ABI, and a selftest
>> improvement adapting the number of threads to the number of detected
>> CPUs, which is nicer for smaller systems.
>> 
>> Thanks,
>> 
>> Mathieu
>> 
>> Mathieu Desnoyers (3):
>>   rseq: cleanup: Reflect removal of event counter in comments
>>   rseq: cleanup: remove rseq_len from task_struct
>>   rseq/selftests: Adapt number of threads to the number of detected cpus
>> 
>>  arch/arm/kernel/signal.c                       | 3 +--
>>  arch/x86/kernel/signal.c                       | 5 +----
>>  include/linux/sched.h                          | 4 ----
>>  kernel/rseq.c                                  | 9 +++------
>>  tools/testing/selftests/rseq/run_param_test.sh | 7 +++++--
>>  5 files changed, 10 insertions(+), 18 deletions(-)
> 
> Looks good, I've applied these to tip:core/rseq to make sure they don't
> miss the v5.2 merge window.
> 
> (Let me know if you wanted to handle this differently.)

That's fine by me!

Thanks,

Mathieu


> 
> Thanks,
> 
> 	Ingo

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com