linux-kernel - Re: DMA allocations from CMA and fatal_signal

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Message-ID: <1414789630.14835.49.camel@sakura.staff.proxad.net>
Date:	Fri, 31 Oct 2014 22:07:10 +0100
From:	Maxime Bizon <mbizon@...ebox.fr>
To:	Joonsoo Kim <iamjoonsoo.kim@....com>
Cc:	Florian Fainelli <f.fainelli@...il.com>, lauraa@...eaurora.org,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	linux-kernel@...r.kernel.org, mina86@...a86.com,
	linux-mm@...ck.org, aneesh.kumar@...ux.vnet.ibm.com,
	Gregory Fong <gregory.0xf0@...il.com>, gioh.kim@....com,
	akpm@...ux-foundation.org,
	Brian Norris <computersforpeace@...il.com>,
	linux-arm-kernel@...ts.infradead.org, m.szyprowski@...sung.com
Subject: Re: DMA allocations from CMA and fatal_signal_pending check


On Fri, 2014-10-31 at 17:28 +0900, Joonsoo Kim wrote:

> I guess that it is okay that bcm_sysport_open() return -EINTR?

actually, since CMA alloc is hidden behind dma_alloc_coherent(), all you
get back is NULL and then return ENOMEM.

-- 
Maxime


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