linux-kernel - Re: [tip:irq/irqdomain] irqdomain: Introduce helper function irq_domain_add

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Message-ID: <20141129153701.GD5075@pd.tnic>
Date:	Sat, 29 Nov 2014 16:37:01 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Jiang Liu <jiang.liu@...ux.intel.com>
Cc:	linux-tip-commits@...r.kernel.org, matthias.bgg@...il.com,
	tony.luck@...el.com, tglx@...utronix.de, benh@...nel.crashing.org,
	linux-kernel@...r.kernel.org, hpa@...or.com,
	grant.likely@...aro.org, wangyijing@...wei.com,
	marc.zyngier@....com, bhelgaas@...gle.com,
	yingjoe.chen@...iatek.com, mingo@...nel.org
Subject: Re: [tip:irq/irqdomain] irqdomain: Introduce helper function
 irq_domain_add_hierarchy()

On Sat, Nov 29, 2014 at 11:21:11PM +0800, Jiang Liu wrote:
> Thanks for the info about GFP_ATOMIC, originally I have an impression
> that we should use GFP_ATOMIC when interrupt is disabled:(

Hmm, that's actually a good point. GFP_NOFS has __GFP_WAIT which means
that we can wait and resched when the first alloc attempt fails so maybe
GFP_ATOMIC would be the correct solution after all...

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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