linux-kernel - Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex

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Message-ID: <20160823161750.GD31186@linux-80c1.suse>
Date:   Tue, 23 Aug 2016 09:17:50 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Waiman Long <waiman.long@....com>,
        Jason Low <jason.low2@....com>,
        Ding Tianhong <dingtianhong@...wei.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Will Deacon <Will.Deacon@....com>,
        Ingo Molnar <mingo@...hat.com>,
        Imre Deak <imre.deak@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Terry Rudd <terry.rudd@....com>,
        "Paul E. McKenney" <paulmck@...ibm.com>,
        Jason Low <jason.low2@...com>
Subject: Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex

What's the motivation here? Is it just to unify counter and owner for
the starvation issue? If so, is this really the path we wanna take for
a small debug corner case?

I have not looked at the patches yet, but are there any performance minutia
to be aware of?

> 46 files changed, 160 insertions(+), 1298 deletions(-)

Oh my.

Thanks,
Davidlohr