From: Michal Nazarewicz <mina86@mina86.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
        linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-sh@vger.kernel.org,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Russell King - ARM Linux <linux@arm.linux.org.uk>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: Re: [PATCH 1/4] mm: cma: Don't crash on allocation if CMA area can't be activated
In-Reply-To: <1463193.4qGZjcvNod@avalon>
Organization: http://mina86.com/
References: <1414074828-4488-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> <1414074828-4488-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com> <xa1tmw8mlobz.fsf@mina86.com> <1463193.4qGZjcvNod@avalon>
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Date: Fri, 24 Oct 2014 18:34:46 +0200
Message-ID: <xa1tfved2zq1.fsf@mina86.com>
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Sender: linux-kernel-owner@vger.kernel.org

> On Thursday 23 October 2014 18:53:36 Michal Nazarewicz wrote:
>> As a matter of fact, this is present in kernels earlier than 3.17 but in
>> the 3.17 the code has been moved from drivers/base/dma-contiguous.c to
>> mm/cma.c so this might require separate stable patch.

On Fri, Oct 24 2014, Laurent Pinchart <laurent.pinchart@ideasonboard.com> wrote:
> That could be done, but I'm not sure if it's really worth it. The bug only 
> occurs when the CMA zone activation fails. I've ran into that case due to a 
> bug introduced in v3.18-rc1, but this shouldn't be the case for older kernel 
> versions.

Fair enough.

-- 
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..o | Computer Science,  Michał “mina86” Nazarewicz    (o o)
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