linux-kernel - Re: [PATCH 3/3] kernel/workqueue: Suppress a false positive lockdep complaint

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Message-ID: <00b7f36913ab5243a5cde05a4cb2528246197895.camel@sipsolutions.net>
Date:   Thu, 25 Oct 2018 22:13:18 +0200
From:   Johannes Berg <johannes@...solutions.net>
To:     Tejun Heo <tj@...nel.org>, Bart Van Assche <bvanassche@....org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>,
        "tytso@....edu" <tytso@....edu>
Subject: Re: [PATCH 3/3] kernel/workqueue: Suppress a false positive lockdep
 complaint

On Thu, 2018-10-25 at 15:36 +0000, Tejun Heo wrote:
> We
> wanna annotate the users for the exceptions rather than weakening the
> workqueue lockdep checks, especially because workqueue related
> deadlocks can be pretty difficult to trigger and root cause
> afterwards.

I think you just said more in that one sentence than I wrote in all the
emails on this ;-)

johannes