Re: [RFCv5 0/9] CMA + VCMM integration

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On Tue, Sep 07, 2010 at 03:40:46AM +0200, Micha?? Nazarewicz wrote:
> On Mon, 06 Sep 2010 23:09:05 +0200, Greg KH <greg@xxxxxxxxx> wrote:
>
>> On Mon, Sep 06, 2010 at 08:33:50AM +0200, Michal Nazarewicz wrote:
>>> Hello everyone,
>>>
>>> This patchset introduces a draft of a redesign of Zach Pfeffer's
>>> VCMM.
>>
>> What is a VCMM?
>
> Virtual Contiguous Memory Manager.  The version posted by Zach can
> be found at: <http://article.gmane.org/gmane.linux.kernel.mm/50090>.
> It is an API for managing IO MMU and IO MMU mappings.
>
>> What is a CMA?
>
> Contiguous Memory Manager.  The v4 version can be found at
> <http://marc.info/?l=linux-mm&m=128229799415817&w=2>.  It is an API for
> allocating large, physically contiguous blocks of memory.
>
> I haven't expected that anyone who haven't already participated in the
> discussion about CMA and VCMM will get interested by this patchset
> so I was a bit vague in the cover letter.  Sorry about that.
>
>>> Not all of the functionality of the original VCMM has been
>>> ported into this patchset.  This is mostly meant as RFC.  Moreover,
>>> the code for VCMM implementation in this RFC has not been tested.
>
>> If you haven't even tested it, why should we review it?
>
> Ignore the code then and look just at the documentation, please.
> I wanted to post what I have to receive comments about the general
> idea and not necessarily the code itself.  Code is just a mean to show
> how I see the implementation of the idea described in the documentation.
> Because of all that, I marked the patchset as a RFC rather than a PATCH.

Oops, I looked at the code, sorry :)

greg k-h

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