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

From Davidlohr Bueso <dave@stgolabs.net>
Newsgroups linux.kernel
Subject Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex
Date 2016-08-23 18:20 +0200
Message-ID <s9mAF-6kW-7@gated-at.bofh.it> (permalink)
References <s9jt7-49j-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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

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Thread

[RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex Peter Zijlstra <peterz@infradead.org> - 2016-08-23 15:00 +0200
  [RFC][PATCH 3/3] locking/mutex: Add lock handoff to avoid starvation Peter Zijlstra <peterz@infradead.org> - 2016-08-23 15:00 +0200
    Re: [RFC][PATCH 3/3] locking/mutex: Add lock handoff to avoid  starvation Peter Zijlstra <peterz@infradead.org> - 2016-08-23 15:00 +0200
    Re: [RFC][PATCH 3/3] locking/mutex: Add lock handoff to avoid  starvation Peter Zijlstra <peterz@infradead.org> - 2016-08-23 22:50 +0200
      Re: [RFC][PATCH 3/3] locking/mutex: Add lock handoff to avoid  starvation Peter Zijlstra <peterz@infradead.org> - 2016-08-25 10:20 +0200
  [RFC][PATCH 2/3] locking/mutex: Allow MUTEX_SPIN_ON_OWNER when DEBUG_MUTEXES Peter Zijlstra <peterz@infradead.org> - 2016-08-23 15:00 +0200
  Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex Davidlohr Bueso <dave@stgolabs.net> - 2016-08-23 18:20 +0200
    Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex Jason Low <jason.low2@hpe.com> - 2016-08-23 18:40 +0200
      Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex Peter Zijlstra <peterz@infradead.org> - 2016-08-23 19:00 +0200
        Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex Peter Zijlstra <peterz@infradead.org> - 2016-08-23 22:50 +0200
      Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex Jason Low <jason.low2@hpe.com> - 2016-08-24 03:30 +0200
    Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex Peter Zijlstra <peterz@infradead.org> - 2016-08-24 00:00 +0200
    Re: [RFC][PATCH 0/3] locking/mutex: Rewrite basic mutex Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-24 03:30 +0200
  Re: [RFC][PATCH 1/3] locking/mutex: Rework mutex::owner Peter Zijlstra <peterz@infradead.org> - 2016-08-23 22:40 +0200
  Re: [RFC][PATCH 1/3] locking/mutex: Rework mutex::owner Tim Chen <tim.c.chen@linux.intel.com> - 2016-08-23 23:00 +0200
    Re: [RFC][PATCH 1/3] locking/mutex: Rework mutex::owner Peter Zijlstra <peterz@infradead.org> - 2016-08-23 23:10 +0200
  Re: [RFC][PATCH 1/3] locking/mutex: Rework mutex::owner Peter Zijlstra <peterz@infradead.org> - 2016-08-23 23:20 +0200
  Re: [RFC][PATCH 1/3] locking/mutex: Rework mutex::owner Will Deacon <will.deacon@arm.com> - 2016-08-24 12:00 +0200
    Re: [RFC][PATCH 1/3] locking/mutex: Rework mutex::owner Will Deacon <will.deacon@arm.com> - 2016-08-24 19:00 +0200
    Re: [RFC][PATCH 1/3] locking/mutex: Rework mutex::owner Peter Zijlstra <peterz@infradead.org> - 2016-08-24 19:00 +0200
    Re: [RFC][PATCH 1/3] locking/mutex: Rework mutex::owner Peter Zijlstra <peterz@infradead.org> - 2016-08-24 19:20 +0200

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