linux-ext4 - Re: [PATCH v6 06/14] mm: add device coherent checker to is_pinnable

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Message-ID: <336094c6-0c94-2b43-5472-c44638e8446a@redhat.com>
Date:   Tue, 28 Jun 2022 12:41:42 +0200
From:   David Hildenbrand <david@...hat.com>
To:     Alex Sierra <alex.sierra@....com>, jgg@...dia.com
Cc:     Felix.Kuehling@....com, 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, jglisse@...hat.com, apopple@...dia.com,
        willy@...radead.org, akpm@...ux-foundation.org
Subject: Re: [PATCH v6 06/14] mm: add device coherent checker to
 is_pinnable_page

On 28.06.22 02:14, Alex Sierra wrote:
> is_device_coherent checker was added to is_pinnable_page and renamed
> to is_longterm_pinnable_page. The reason is that device coherent
> pages are not supported for longterm pinning.
> 
> Signed-off-by: Alex Sierra <alex.sierra@....com>
> ---
>  include/linux/memremap.h | 25 +++++++++++++++++++++++++
>  include/linux/mm.h       | 24 ------------------------
>  mm/gup.c                 |  5 ++---
>  mm/gup_test.c            |  4 ++--
>  mm/hugetlb.c             |  2 +-
>  5 files changed, 30 insertions(+), 30 deletions(-)


Rename of the function should be a separate cleanup patch before any
other changes, and the remaining change should be squashed into patch
#1, to logically make sense, because it still states "no one should be
allowed to pin such memory so that it can always be evicted."

Or am I missing something?

-- 
Thanks,

David / dhildenb