linux-kernel - Re: [PATCH v4 1/2] mm/gup.c: Don't pass gup_flags to check_and_migrate_movable

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Date:   Fri, 12 Aug 2022 11:02:42 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     Matthew Wilcox <willy@...radead.org>,
        Alistair Popple <apopple@...dia.com>
Cc:     linux-mm@...ck.org, akpm@...ux-foundation.org,
        linux-kernel@...r.kernel.org,
        "Sierra Guiza, Alejandro (Alex)" <alex.sierra@....com>,
        Chaitanya Kulkarni <kch@...dia.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Felix Kuehling <Felix.Kuehling@....com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Miaohe Lin <linmiaohe@...wei.com>,
        Muchun Song <songmuchun@...edance.com>,
        Ralph Campbell <rcampbell@...dia.com>,
        David Hildenbrand <david@...hat.com>
Subject: Re: [PATCH v4 1/2] mm/gup.c: Don't pass gup_flags to
 check_and_migrate_movable_pages()

On 8/12/22 05:57, Matthew Wilcox wrote:
> On Fri, Aug 12, 2022 at 12:13:08PM +1000, Alistair Popple wrote:
>> +			get_page(&folio->page);
>> +			unpin_user_page(&folio->page);
> 
> https://lore.kernel.org/linux-mm/YvJddHPZsh7Lwzps@casper.infradead.org/

The above fix shows up in patch 2/2. I noticed during review that
it was applied to a different patch than the one you replied to,
but figured it didn't matter which patch picked up this fix, since
the problem precedes either patch.


thanks,
-- 
John Hubbard
NVIDIA