linux-ext4 - Re: [PATCH v4 00/10] Add MEMORY_DEVICE_COHERENT for coherent device memory mapping

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Date:   Fri, 28 Jan 2022 12:09:06 -0500
From:   Felix Kuehling <felix.kuehling@....com>
To:     "Sierra Guiza, Alejandro (Alex)" <alex.sierra@....com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-mm@...ck.org, rcampbell@...dia.com,
        linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        hch@....de, jgg@...dia.com, jglisse@...hat.com, apopple@...dia.com,
        willy@...radead.org,
        "Deucher, Alexander" <Alexander.Deucher@....com>
Subject: Re: [PATCH v4 00/10] Add MEMORY_DEVICE_COHERENT for coherent device
 memory mapping

Thank you, Alex for your persistence with this patch series. Fee free to 
add my Acked-by to all the patches that don't already have my R-b. I 
have done pretty through reviews of previous versions of those patches, 
but obviously missed a lot of issues pointed out by real MM experts.

Thank you Alistair for your reviews, feedback and collaboration!

Regards,
   Felix


Am 2022-01-27 um 18:20 schrieb Sierra Guiza, Alejandro (Alex):
> Andrew,
> We're somehow new on this procedure. Are you referring to rebase this 
> patch series to
> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 
> <5.17-rc1 tag>?
>
> Regards,
> Alex Sierra
>
> Alex Deucher,
> Just a quick heads up. This patch series contains changes to the 
> amdgpu driver which we're
> planning to merge through Andrew's tree, If that's ok with you.
>
> Regards,
> Alex Sierra
>
> On 1/27/2022 4:32 PM, Andrew Morton wrote:
>> On Wed, 26 Jan 2022 21:09:39 -0600 Alex Sierra <alex.sierra@....com> 
>> wrote:
>>
>>> This patch series introduces MEMORY_DEVICE_COHERENT, a type of memory
>>> owned by a device that can be mapped into CPU page tables like
>>> MEMORY_DEVICE_GENERIC and can also be migrated like
>>> MEMORY_DEVICE_PRIVATE.
>> Some more reviewer input appears to be desirable here.
>>
>> I was going to tentatively add it to -mm and -next, but problems.
>> 5.17-rc1's mm/migrate.c:migrate_vma_check_page() is rather different
>> from the tree you patched.  Please redo, refresh and resend?
>>