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SubjectRe: Linux 4.4.174
On Tue, Feb 12, 2019 at 08:13:11PM -0800, Mark D Rustad wrote:
> On Feb 9, 2019, at 12:13 AM, Greg KH <gregkh@linuxfoundation.org> wrote:
>
> > On Fri, Feb 08, 2019 at 08:44:32PM -0800, Mark D Rustad wrote:
> > > 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 It seems very strange to say that it is obsolete since 4.17 in a 4.4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.
> >
> > 4.17 is a point in time :)
>
> Of course I understand, but some random non-kernel-developer tuning a kernel
> may be pretty puzzled. I don't know right off the top something brief that
> would be more generally meaningful, but maybe someone might. What does
> obsolete mean in this context? It exists but does nothing? It exists and
> does something but will eventually go away?

Fair enough, want to provide a patch with the real kernel version this
happened in?

thanks,

greg k-h

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