From: Peter Zijlstra <peterz@infradead.org>
To: Qian Cai <cai@lca.pw>
Cc: Thomas Gleixner <tglx@linutronix.de>,
John Stultz <john.stultz@linaro.org>,
sboyd@kernel.org, rostedt@goodmis.org, hannes@cmpxchg.org,
linux-kernel@vger.kernel.org,
Andy Lutomirski <luto@amacapital.net>
Subject: Re: [PATCH] timer: silenct a lockdep splat with debugobjects
Date: Fri, 13 Mar 2020 22:26:20 +0100 [thread overview]
Message-ID: <20200313212620.GA2452@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <D3115315-12A9-43A9-9209-09553CF2C71C@lca.pw>
On Fri, Mar 13, 2020 at 05:00:41PM -0400, Qian Cai wrote:
> > On Mar 13, 2020, at 4:13 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > Or, fix that random crud to do the wakeup outside of the lock.
>
> That is likely to be difficult until we can find a creative way to not “uglifying" the
> random code by dropping locks in the middle etc just because of debugojects.
https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git/log/?h=random/fast
Doesn't look difficult at all.
next prev parent reply other threads:[~2020-03-13 21:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-13 15:42 [PATCH] timer: silenct a lockdep splat with debugobjects Qian Cai
2020-03-13 18:08 ` Peter Zijlstra
2020-03-13 19:32 ` Qian Cai
2020-03-13 20:13 ` Peter Zijlstra
2020-03-13 21:00 ` Qian Cai
2020-03-13 21:26 ` Peter Zijlstra [this message]
2020-03-14 2:53 ` Qian Cai
2020-03-23 13:41 ` Qian Cai
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