[PATCH v4] mm: cma: add a simple kernel module as the helper to test CMA

[Barry Song]

2012/7/4 Barry Song <21cnbao at gmail.com>:
> Hi Marek,
>
> 2012/7/4 Marek Szyprowski <m.szyprowski at samsung.com>:
>> Hello,
>>
>> On Tuesday, July 03, 2012 2:54 PM Michal Nazarewicz wrote:
>>
>>> > 2012/7/3 Marek Szyprowski <m.szyprowski at samsung.com>:
>>> >> IMHO the right place for such code is in drivers/misc instead of tools/cma.
>>> >>
>>> >> This patch contains a kernel module source code so it should be put with other kernel
>>> >> modules. tools/ directory is aimed to contain user space code useful for developing and
>>> >> testing Linux kernel.
>>>
>>> On Tue, 03 Jul 2012 09:39:34 +0200, Barry Song <21cnbao at gmail.com> wrote:
>>> > this one is aiming to test CMA, it should be in tools/ as Michal
>>> > Nazarewicz and i have talked about that.
>>> > it is not a real driver at all.
>>>
>>> Yeah, I feel like it's better placed in tools/ not to pollute other directories with
>>> drivers that are of no use to regular users.  I don't have strong feelings about it
>>> though, so I'm fine either way.
>>
>> Other test devices/drivers are in drivers directory (drivers/usb/misc/usbtest.c for
>> example), I don't see any good reason for polluting tools/ directory with kernel code.
>>
>> IMHO the right person to decide if it makes sense to have such drivers in drivers/mics/
>> or tools/cma/ is Greg KH. Barry, please resend it and ask Greg for the decision.
>
> sure. thanks.

and BTW, if the only issue is the dir it should be placed to let Greg
decide, would i also have your reviewed-by before sending to Greg KH?

>
>>
>> Best regards
>> --
>> Marek Szyprowski
>> Samsung Poland R&D Center
>>

-barry