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From:   Mark D Rustad <mrustad@gmail.com>
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Subject: Re: Linux 4.4.174
Date:   Fri, 8 Feb 2019 20:44:32 -0800
In-Reply-To: <20190208105431.GB32328@kroah.com>
Cc:     linux-kernel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        torvalds@linux-foundation.org, stable@vger.kernel.org, lwn@lwn.net,
        Jiri Slaby <jslaby@suse.cz>
To:     Greg KH <gregkh@linuxfoundation.org>
References: <20190208105422.GA32328@kroah.com>
 <20190208105431.GB32328@kroah.com>
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On Feb 8, 2019, at 2:54 AM, Greg KH <gregkh@linuxfoundation.org> wrote:

> diff --git a/Documentation/networking/ip-sysctl.txt  
> b/Documentation/networking/ip-sysctl.txt
> index 2ea4c45cf1c8..7c229f59016f 100644
> --- a/Documentation/networking/ip-sysctl.txt
> +++ b/Documentation/networking/ip-sysctl.txt
> @@ -112,14 +112,11 @@ min_adv_mss - INTEGER
>
>  IP Fragmentation:
>
> -ipfrag_high_thresh - INTEGER
> -	Maximum memory used to reassemble IP fragments. When
> -	ipfrag_high_thresh bytes of memory is allocated for this purpose,
> -	the fragment handler will toss packets until ipfrag_low_thresh
> -	is reached. This also serves as a maximum limit to namespaces
> -	different from the initial one.
> -
> -ipfrag_low_thresh - INTEGER
> +ipfrag_high_thresh - LONG INTEGER
> +	Maximum memory used to reassemble IP fragments.
> +
> +ipfrag_low_thresh - LONG INTEGER
> +	(Obsolete since linux-4.17)

It seems very strange to say that it is obsolete since 4.17 in a 4.4 kernel.

>  	Maximum memory used to reassemble IP fragments before the kernel
>  	begins to remove incomplete fragment queues to free up resources.
>  	The kernel still accepts new fragments for defragmentation.

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Mark Rustad, MRustad@gmail.com

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