linux-kernel - Re: [PATCH RT 2/4] Revert "timers: do not raise softirq unconditionally"

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Message-ID: <20150319122611.0d002d48@gandalf.local.home>
Date:	Thu, 19 Mar 2015 12:26:11 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Mike Galbraith <umgwanakikbuti@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Carsten Emde <C.Emde@...dl.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	John Kacur <jkacur@...hat.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: Re: [PATCH RT 2/4] Revert "timers: do not raise softirq
 unconditionally"

On Thu, 19 Mar 2015 09:17:09 +0100
Mike Galbraith <umgwanakikbuti@...il.com> wrote:


> (aw crap, let's go shopping)... so why is the one in timer.c ok?

It's not. Sebastian, you said there were no other cases of rt_mutexes
being taken in hard irq context. Looks like timer.c has one.

So perhaps the real fix is to get that special case of ownership in
hard interrupt context?

-- Steve

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