linux-kernel - Re: [PATCH 00/27] locking/lockdep: Add support for dynamic keys

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Message-ID: <20181129123140.GK2131@hirez.programming.kicks-ass.net>
Date:   Thu, 29 Nov 2018 13:31:40 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Bart Van Assche <bvanassche@....org>
Cc:     mingo@...hat.com, tj@...nel.org, johannes.berg@...el.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/27] locking/lockdep: Add support for dynamic keys

On Wed, Nov 28, 2018 at 03:42:58PM -0800, Bart Van Assche wrote:
> Hi Ingo and Peter,
> 
> A known shortcoming of the current lockdep implementation is that it requires
> lock keys to be allocated statically and that this key sharing can cause false
> positive deadlock reports. This patch series adds support for dynamic keys in
> the lockdep code. I'm not claiming that this patch series is perfect. However,
> the code in this patch series survives nontrivial tests so I think it's worth
> a look. Two unrelated changes in this patch series are:
> - Improve the lockdep tests.
> - Complain if no name has been assigned to a lock object.

Looks very good mostly, and it improves the lives of people that like
modules too.

Thanks for doing all that.