linux-kernel - Re: [PATCH] docs/vm: clarify overcommit amount sysctl behavior

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Message-ID: <f964967d-dd47-f509-33c3-abd6f8593710@redhat.com>
Date:   Thu, 16 Dec 2021 12:01:51 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Matthew Wilcox <willy@...radead.org>,
        Anssi Hannula <anssi.hannula@....fi>
Cc:     Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] docs/vm: clarify overcommit amount sysctl behavior

On 11.12.21 23:21, Matthew Wilcox wrote:
> On Sat, Dec 11, 2021 at 09:41:59PM +0200, Anssi Hannula wrote:
>> Documentation/vm/overcommit-accounting.rst says that the overcommit
>> amount can be set via vm.overcommit_ratio and vm.overcommit_kbytes.
>>
>> Add a clarification that those only take effect in overcommit handling
>> mode 2 ("Don't overcommit"), i.e. they do not act as an "additional"
>> limit that is always enforced.
>>
>> Signed-off-by: Anssi Hannula <anssi.hannula@....fi>
>> ---
> 
> Simple and clear improvement, IMO.  Cc'ing linux-mm to get more eyes on
> it.

As I had the same idea to just make this clearer in the context of
advanced documentation for virtio-mem, so I approve :)

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

-- 
Thanks,

David / dhildenb