linux-kernel - Re: [PATCH 3.18-rc3 v8 1/4] irqchip: gic: Make gic_raise

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Date:	Mon, 24 Nov 2014 22:29:58 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Daniel Thompson <daniel.thompson@...aro.org>
cc:	linaro-kernel@...ts.linaro.org,
	Russell King <linux@....linux.org.uk>,
	Jason Cooper <jason@...edaemon.net>, patches@...aro.org,
	Marc Zyngier <marc.zyngier@....com>,
	linux-kernel@...r.kernel.org, Daniel Drake <drake@...lessm.com>,
	Dmitry Pervushin <dpervushin@...il.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 3.18-rc3 v8 1/4] irqchip: gic: Make gic_raise_softirq()
 FIQ-safe

On Mon, 24 Nov 2014, Daniel Thompson wrote:
> On 24/11/14 20:38, Thomas Gleixner wrote:
> > So while I cannot come up with a brilliant replacement, it would be
> > really helpful documentation wise if you could do the following:
> > 
> > 1) Create a patch which introduces irq_migration_lock as a raw
> >    spinlock and replaces the usage of irq_controller_lock in
> >    gic_raise_softirq() and gic_migrate_target() along with a proper
> >    explanation in the code and the changelog of course.
> 
> Replace irq_controller_lock or augment it with a new one?

Replace it in gic_raise_softirq() and add it to gic_migrate_target()
as you did with the RW lock.
 
Thanks,

	tglx

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