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From:   Jonathan Corbet <corbet@lwn.net>
To:     David Hildenbrand <david@redhat.com>,
        Matthew Wilcox <willy@infradead.org>,
        Anssi Hannula <anssi.hannula@iki.fi>
Cc:     linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org
Subject: Re: [PATCH] docs/vm: clarify overcommit amount sysctl behavior
In-Reply-To: <f964967d-dd47-f509-33c3-abd6f8593710@redhat.com>
References: <20211211194159.3137362-1-anssi.hannula@iki.fi>
 <YbUkdvFBayRwV6ax@casper.infradead.org>
 <f964967d-dd47-f509-33c3-abd6f8593710@redhat.com>
Date:   Thu, 16 Dec 2021 15:53:36 -0700
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David Hildenbrand <david@redhat.com> writes:

> 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@iki.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@redhat.com>

Applied, thanks.

jon