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

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Message-ID: <20190419104123.GB111210@gmail.com>
Date:   Fri, 19 Apr 2019 12:41:23 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
        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>,
        Steven 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


* 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.)

Thanks,

	Ingo