linux-kernel - Re: [PATCH] CMA: correct unlock target

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Message-ID: <alpine.DEB.2.02.1405291237280.28588@chino.kir.corp.google.com>
Date:	Thu, 29 May 2014 12:37:38 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Joonsoo Kim <iamjoonsoo.kim@....com>
cc:	Marek Szyprowski <m.szyprowski@...sung.com>,
	Laura Abbott <lauraa@...eaurora.org>,
	Michal Nazarewicz <mina86@...a86.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Russell King - ARM Linux <linux@....linux.org.uk>
Subject: Re: [PATCH] CMA: correct unlock target

On Thu, 29 May 2014, Joonsoo Kim wrote:

> 'cma: Remove potential deadlock situation' introduces per cma area mutex
> for bitmap management. It is good, but there is one mistake. When we
> can't find appropriate area in bitmap, we release cma_mutex global lock
> rather than cma->lock and this is a bug. So fix it.
> 
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com>

Acked-by: David Rientjes <rientjes@...gle.com>
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