From: David Hildenbrand <david@redhat.com>
To: Felix Kuehling <felix.kuehling@amd.com>,
Alex Sierra <alex.sierra@amd.com>,
jgg@nvidia.com
Cc: linux-mm@kvack.org, rcampbell@nvidia.com,
linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
hch@lst.de, jglisse@redhat.com, apopple@nvidia.com,
willy@infradead.org, akpm@linux-foundation.org
Subject: Re: [PATCH v7 01/14] mm: rename is_pinnable_pages to is_pinnable_longterm_pages
Date: Thu, 30 Jun 2022 00:15:06 +0200 [thread overview]
Message-ID: <49315889-96de-8e41-f8ee-dd5b33c5e1db@redhat.com> (raw)
In-Reply-To: <575b48a6-e372-acda-9a7c-449f307a588c@amd.com>
On 30.06.22 00:08, Felix Kuehling wrote:
> On 2022-06-29 03:33, David Hildenbrand wrote:
>> On 29.06.22 05:54, Alex Sierra wrote:
>>> is_pinnable_page() and folio_is_pinnable() were renamed to
>>> is_longterm_pinnable_page() and folio_is_longterm_pinnable()
>>> respectively. These functions are used in the FOLL_LONGTERM flag
>>> context.
>> Subject talks about "*_pages"
>>
>>
>> Can you elaborate why the move from mm.h to memremap.h is justified?
>
> Patch 2 adds is_device_coherent_page in memremap.h and updates
> is_longterm_pinnable_page to call is_device_coherent_page. memremap.h
> cannot include mm.h because it is itself included by mm.h. So the choice
> was to move is_longterm_pinnable_page to memremap.h, or move
> is_device_coherent_page and all its dependencies to mm.h. The latter
> would have been a bigger change.
I really don't think something mm generic that compiles without
ZONE_DEVICE belongs into memremap.h. Please find a cleaner way to get
this done.
--
Thanks,
David / dhildenb
next prev parent reply other threads:[~2022-06-29 22:15 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-29 3:54 [PATCH v7 00/14] Add MEMORY_DEVICE_COHERENT for coherent device memory mapping Alex Sierra
2022-06-29 3:54 ` [PATCH v7 01/14] mm: rename is_pinnable_pages to is_pinnable_longterm_pages Alex Sierra
2022-06-29 7:33 ` David Hildenbrand
2022-06-29 22:08 ` Felix Kuehling
2022-06-29 22:15 ` David Hildenbrand [this message]
2022-07-02 4:25 ` Andrew Morton
2022-06-29 23:24 ` Andrew Morton
2022-06-29 3:54 ` [PATCH v7 02/14] mm: add zone device coherent type memory support Alex Sierra
2022-06-29 18:48 ` David Hildenbrand
2022-06-29 3:54 ` [PATCH v7 03/14] mm: handling Non-LRU pages returned by vm_normal_pages Alex Sierra
2022-06-29 9:59 ` David Hildenbrand
2022-06-29 23:31 ` Andrew Morton
2022-06-29 3:54 ` [PATCH v7 04/14] mm: add device coherent vma selection for memory migration Alex Sierra
2022-06-30 10:04 ` David Hildenbrand
2022-06-30 11:44 ` Alistair Popple
2022-06-30 20:56 ` David Hildenbrand
2022-06-29 3:54 ` [PATCH v7 05/14] mm: remove the vma check in migrate_vma_setup() Alex Sierra
2022-06-29 3:54 ` [PATCH v7 06/14] mm/gup: migrate device coherent pages when pinning instead of failing Alex Sierra
2022-06-29 3:54 ` [PATCH v7 07/14] drm/amdkfd: add SPM support for SVM Alex Sierra
2022-06-29 3:54 ` [PATCH v7 08/14] lib: test_hmm add ioctl to get zone device type Alex Sierra
2022-06-29 3:54 ` [PATCH v7 09/14] lib: test_hmm add module param for " Alex Sierra
2022-06-29 3:54 ` [PATCH v7 10/14] lib: add support for device coherent type in test_hmm Alex Sierra
2022-06-29 3:54 ` [PATCH v7 11/14] tools: update hmm-test to support device coherent type Alex Sierra
2022-06-29 3:54 ` [PATCH v7 12/14] tools: update test_hmm script to support SP config Alex Sierra
2022-06-29 3:54 ` [PATCH v7 13/14] tools: add hmm gup tests for device coherent type Alex Sierra
2022-06-29 3:54 ` [PATCH v7 14/14] tools: add selftests to hmm for COW in device memory Alex Sierra
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