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Re: [PATCH v5 06/13] lockdep: Implement crossrelease feature

From Byungchul Park <byungchul.park@lge.com>
Newsgroups linux.kernel
Subject Re: [PATCH v5 06/13] lockdep: Implement crossrelease feature
Date 2017-03-01 07:50 +0100
Message-ID <tg6fg-7wF-19@gated-at.bofh.it> (permalink)
References <t0YjD-4z4-5@gated-at.bofh.it> <t0Ytl-4D1-41@gated-at.bofh.it> <tfSlY-6te-25@gated-at.bofh.it> <tg4Q9-6yN-1@gated-at.bofh.it>
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On Wed, Mar 01, 2017 at 02:17:07PM +0900, Byungchul Park wrote:
> On Tue, Feb 28, 2017 at 04:49:00PM +0100, Peter Zijlstra wrote:
> > On Wed, Jan 18, 2017 at 10:17:32PM +0900, Byungchul Park wrote:
> > 
> > > +struct cross_lock {
> > > +	/*
> > > +	 * When more than one acquisition of crosslocks are overlapped,
> > > +	 * we do actual commit only when ref == 0.
> > > +	 */
> > > +	atomic_t ref;
> > 
> > That comment doesn't seem right, should that be: ref != 0 ?
> > Also; would it not be much clearer to call this: nr_blocked, or waiters
> > or something along those lines, because that is what it appears to be.

Honestly, I forgot why I introduced the ref.. I will remove the ref next
spin, and handle waiters in another way.

Thank you,
Byungchul

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Thread

Re: [PATCH v5 06/13] lockdep: Implement crossrelease feature Peter Zijlstra <peterz@infradead.org> - 2017-02-28 17:00 +0100
  Re: [PATCH v5 06/13] lockdep: Implement crossrelease feature Byungchul Park <byungchul.park@lge.com> - 2017-03-01 06:20 +0100
    Re: [PATCH v5 06/13] lockdep: Implement crossrelease feature Byungchul Park <byungchul.park@lge.com> - 2017-03-01 07:50 +0100
    Re: [PATCH v5 06/13] lockdep: Implement crossrelease feature Byungchul Park <byungchul.park@lge.com> - 2017-03-02 04:00 +0100

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