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Subject: Re: [HMM 12/15] mm/migrate: new memory migration helper for use with
 device memory v4
To: Jerome Glisse <jglisse@redhat.com>
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From: Evgeny Baskakov <ebaskakov@nvidia.com>
Message-ID: <d31b88e7-be7e-c1ca-513f-f12edb126eac@nvidia.com>
Date: Thu, 20 Jul 2017 14:05:00 -0700
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On 7/10/17 5:54 PM, Jerome Glisse wrote:

> On Mon, Jul 10, 2017 at 05:17:23PM -0700, Evgeny Baskakov wrote:
>> On 7/10/17 4:43 PM, Jerome Glisse wrote:
>>
>>> On Mon, Jul 10, 2017 at 03:59:37PM -0700, Evgeny Baskakov wrote:
>>> ...
>>> Horrible stupid bug in the code, most likely from cut and paste. Attached
>>> patch should fix it. I don't know how long it took for you to trigger it.
>>>
>>> Jérôme
>> Thanks, this indeed fixes the problem! Yes, it took a nightly run before it
>> triggered.
>>
>> One a side note, should this "return NULL" be replaced with "return
>> ERR_PTR(-ENOMEM)"?
> Or -EBUSY but yes sure.
>
> Jérôme

Hi Jerome,

Are these fixes in already (for the alloc_chrdev_region and "return 
NULL" issues)? I don't see them in hmm-next nor in hmm-v24.

Can you please double check it?

Thanks!

-- 
Evgeny Baskakov
NVIDIA