linux-kernel - Re: [PATCH v3 6/7] mm/gup: remove vmas parameter from pin_user

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Message-ID: <eb624430-6fb5-0349-0798-3f71c39e8768@redhat.com>
Date:   Mon, 17 Apr 2023 13:14:36 +0200
From:   David Hildenbrand <david@...hat.com>
To:     Lorenzo Stoakes <lstoakes@...il.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Matthew Wilcox <willy@...radead.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Leon Romanovsky <leon@...nel.org>,
        Christian Benvenuti <benve@...co.com>,
        Nelson Escobar <neescoba@...co.com>,
        Bernard Metzler <bmt@...ich.ibm.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        "Michael S . Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>, Jens Axboe <axboe@...nel.dk>,
        Pavel Begunkov <asml.silence@...il.com>,
        Bjorn Topel <bjorn@...nel.org>,
        Magnus Karlsson <magnus.karlsson@...el.com>,
        Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
        Jonathan Lemon <jonathan.lemon@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-rdma@...r.kernel.org,
        linux-media@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, kvm@...r.kernel.org,
        netdev@...r.kernel.org, io-uring@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [PATCH v3 6/7] mm/gup: remove vmas parameter from
 pin_user_pages()

On 15.04.23 14:09, Lorenzo Stoakes wrote:
> After the introduction of FOLL_SAME_FILE we no longer require vmas for any
> invocation of pin_user_pages(), so eliminate this parameter from the
> function and all callers.
> 
> This clears the way to removing the vmas parameter from GUP altogether.
> 
> Signed-off-by: Lorenzo Stoakes <lstoakes@...il.com>
> ---

Ideally, we'd avoid FOLL_SAME_FILE as well

Acked-by: David Hildenbrand <david@...hat.com>

-- 
Thanks,

David / dhildenb