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