Subject: Re: [PATCH] Increase default MLOCK_LIMIT to 8 MiB
To:     Matthew Wilcox <willy@infradead.org>
Cc:     David Hildenbrand <david@redhat.com>,
        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: <593aea3b-e4a4-65ce-0eda-cb3885ff81cd@gnuweeb.org>
 <20211115203530.62ff33fdae14927b48ef6e5f@linux-foundation.org>
 <CFQZSHV700KV.18Y62SACP8KOO@taiga>
 <20211116114727.601021d0763be1f1efe2a6f9@linux-foundation.org>
 <CFRGQ58D9IFX.PEH1JI9FGHV4@taiga>
 <20211116133750.0f625f73a1e4843daf13b8f7@linux-foundation.org>
 <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>
 <YZv3khUomkmRh/X6@casper.infradead.org>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <7b1e8055-4d25-64ec-5756-848dc4283422@kernel.dk>
Date:   Mon, 22 Nov 2021 13:04:06 -0700
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On 11/22/21 1:03 PM, Matthew Wilcox wrote:
> On Mon, Nov 22, 2021 at 12:53:31PM -0700, Jens Axboe wrote:
>> We should just make this 0.1% of RAM (min(0.1% ram, 64KB)) or something
>> like what was suggested, if that will help move things forward. IMHO the
>> 32MB machine is mostly a theoretical case, but whatever .
> 
> I think you mean max(0.1% ram, 64KB).  with that change, I agree.

Heh yes, that is indeed what I meant :-)

-- 
Jens Axboe