linux-kernel - Re: lockdep trace from posix timers

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Message-ID: <1345477686.23018.62.camel@twins>
Date:	Mon, 20 Aug 2012 17:48:06 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	rostedt <rostedt@...dmis.org>, dhowells <dhowells@...hat.com>,
	Al Viro <viro@...iv.linux.org.uk>
Subject: Re: lockdep trace from posix timers

On Mon, 2012-08-20 at 17:43 +0200, Oleg Nesterov wrote:
> BTW, do you think it is really important to try to avoid ->pi_lock?

It is for me, I'm doing task_work_add() from under rq->lock.. :/ I could
fudge around and delay, but not having to would be nice.
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