linux-kernel - Re: [PATCH 1/3] locking: WW mutex cleanup

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Date:   Tue, 19 Jun 2018 11:44:09 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Thomas Hellstrom <thellstrom@...are.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-graphics-maintainer@...are.com, pv-drivers@...are.com,
        Ingo Molnar <mingo@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        David Airlie <airlied@...ux.ie>,
        Davidlohr Bueso <dave@...olabs.net>,
        "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
        Josh Triplett <josh@...htriplett.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-doc@...r.kernel.org, linux-media@...r.kernel.org,
        linaro-mm-sig@...ts.linaro.org
Subject: Re: [PATCH 1/3] locking: WW mutex cleanup

On Tue, Jun 19, 2018 at 10:24:43AM +0200, Thomas Hellstrom wrote:
> From: Peter Ziljstra <peterz@...radead.org>
> 
> Make the WW mutex code more readable by adding comments, splitting up
> functions and pointing out that we're actually using the Wait-Die
> algorithm.
> 
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: Jonathan Corbet <corbet@....net>
> Cc: Gustavo Padovan <gustavo@...ovan.org>
> Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> Cc: Sean Paul <seanpaul@...omium.org>
> Cc: David Airlie <airlied@...ux.ie>
> Cc: Davidlohr Bueso <dave@...olabs.net>
> Cc: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
> Cc: Josh Triplett <josh@...htriplett.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Kate Stewart <kstewart@...uxfoundation.org>
> Cc: Philippe Ombredanne <pombredanne@...b.com>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: linux-doc@...r.kernel.org
> Cc: linux-media@...r.kernel.org
> Cc: linaro-mm-sig@...ts.linaro.org
> Co-authored-by: Thomas Hellstrom <thellstrom@...are.com>
> Signed-off-by: Thomas Hellstrom <thellstrom@...are.com>
> ---
>  Documentation/locking/ww-mutex-design.txt |  12 +-
>  include/linux/ww_mutex.h                  |  28 ++---
>  kernel/locking/mutex.c                    | 202 ++++++++++++++++++------------
>  3 files changed, 145 insertions(+), 97 deletions(-)

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>