linux-kernel - Re: [PATCH v6 05/15] lockdep: Implement crossrelease feature

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Message-ID: <20170518062205.GF28017@X58A-UD3R>
Date:   Thu, 18 May 2017 15:22:05 +0900
From:   Byungchul Park <byungchul.park@....com>
To:     Peter Zijlstra <peterz@...radead.org>
CC:     <mingo@...nel.org>, <tglx@...utronix.de>, <walken@...gle.com>,
        <boqun.feng@...il.com>, <kirill@...temov.name>,
        <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
        <iamjoonsoo.kim@....com>, <akpm@...ux-foundation.org>,
        <willy@...radead.org>, <npiggin@...il.com>, <kernel-team@....com>
Subject: Re: [PATCH v6 05/15] lockdep: Implement crossrelease feature

On Tue, May 16, 2017 at 04:18:46PM +0200, Peter Zijlstra wrote:
> On Tue, Apr 25, 2017 at 02:40:44PM +0900, Byungchul Park wrote:
> > On Mon, Apr 24, 2017 at 12:17:47PM +0200, Peter Zijlstra wrote:
> 
> > > My complaint is mostly about naming.. and "hist_gen_id" might be a
> > > better name.
> > 
> > Ah, I also think the name, 'work_id', is not good... and frankly I am
> > not sure if 'hist_gen_id' is good, either. What about to apply 'rollback',
> > which I did for locks in irq, into works of workqueues? If you say yes,
> > I will try to do it.
> 
> If the rollback thing works, that's fine too. If it gets ugly, stick
> with something like 'hist_id'.

I really want to implement it with rollback.. But it also needs to
introduce new fields to distinguish between works which are all normal
process contexts.

I will do this with renaming instead of applying rollback.

Thank you.