Message-ID: <10ccf01b-f13a-d626-beba-cbee70770cf1@redhat.com>
Date:   Tue, 23 Nov 2021 14:39:19 +0100
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Subject: Re: [PATCH] Increase default MLOCK_LIMIT to 8 MiB
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To:     Jason Gunthorpe <jgg@ziepe.ca>
Cc:     Jens Axboe <axboe@kernel.dk>,
        Andrew Dona-Couch <andrew@donacou.ch>,
        Andrew Morton <akpm@linux-foundation.org>,
        Drew DeVault <sir@cmpwn.com>,
        Ammar Faizi <ammarfaizi2@gnuweeb.org>,
        linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
        io_uring Mailing List <io-uring@vger.kernel.org>,
        Pavel Begunkov <asml.silence@gmail.com>, linux-mm@kvack.org
References: <20211115203530.62ff33fdae14927b48ef6e5f@linux-foundation.org>
 <CFQZSHV700KV.18Y62SACP8KOO@taiga>
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 <CFRGQ58D9IFX.PEH1JI9FGHV4@taiga>
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 <b84bc345-d4ea-96de-0076-12ff245c5e29@redhat.com>
 <8f219a64-a39f-45f0-a7ad-708a33888a3b@www.fastmail.com>
 <333cb52b-5b02-648e-af7a-090e23261801@redhat.com>
 <ca96bb88-295c-ccad-ed2f-abc585cb4904@kernel.dk>
 <5f998bb7-7b5d-9253-2337-b1d9ea59c796@redhat.com>
 <20211123132523.GA5112@ziepe.ca>
From:   David Hildenbrand <david@redhat.com>
Organization: Red Hat
In-Reply-To: <20211123132523.GA5112@ziepe.ca>
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> 
>> 2) Could be provide a mmu variant to ordinary users that's just good
>> enough but maybe not as fast as what we have today? And limit
>> FOLL_LONGTERM to special, privileged users?
> 
> rdma has never been privileged

Feel free to correct me if I'm wrong: it requires special networking
hardware and the admin/kernel has to prepare the system in a way such
that it can be used.

-- 
Thanks,

David / dhildenb