linux-kernel - Re: lockdep trace from posix timers

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Message-ID: <20120820154331.GA20796@redhat.com>
Date:	Mon, 20 Aug 2012 17:43:31 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Peter Zijlstra <peterz@...radead.org>
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 08/20, Peter Zijlstra wrote:
>
> Also, can't task_work use llist stuff? That would also avoid using
> ->pi_lock.

BTW, do you think it is really important to try to avoid ->pi_lock?

Oleg.

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