linux-kernel - Re: [PATCH tip/core/rcu 06/19] rcu: Add warning to detect half-interrupts

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Message-ID: <20190314093657.2c1a3485@gandalf.local.home>
Date:   Thu, 14 Mar 2019 09:36:57 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Joel Fernandes <joel@...lfernandes.org>
Cc:     "Paul E. McKenney" <paulmck@...ux.ibm.com>,
        linux-kernel@...r.kernel.org, rcu@...r.kernel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        mathieu.desnoyers@...icios.com, josh@...htriplett.org,
        luto@...nel.org, byungchul.park@....com
Subject: Re: [PATCH tip/core/rcu 06/19] rcu: Add warning to detect
 half-interrupts

On Thu, 14 Mar 2019 08:31:59 -0400
Joel Fernandes <joel@...lfernandes.org> wrote:

> Oh thanks for pointing that out. Yes it does work for me. I agree with the
> lockdep API addition and others could benefit from it too. I will incorporate
> the lockdep API addition into the RCU patch, but let me know if I should
> rather split it.

I'd recommend splitting it (adding the lockdep_assert in a patch by
itself), but make sure that patch Cc's the lockdep maintainers and
explains the reason for adding it. Might as well Cc the lockdep
maintainers on the entire series too.

-- Steve