* Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, 29 Jan 2013 10:33:48 -0500
> Don Zickus <dzickus@xxxxxxxxxx> wrote:
>
> > --- a/kernel/watchdog.c
> > +++ b/kernel/watchdog.c
> > @@ -79,6 +79,14 @@ static int __init softlockup_panic_setup(char *str)
> > }
> > __setup("softlockup_panic=", softlockup_panic_setup);
> >
> > +static int __init watchdog_thresh_setup(char *str)
> > +{
> > + watchdog_thresh = simple_strtoul(str, NULL, 0);
> > +
> > + return 1;
> > +}
> > +__setup("watchdog_thresh=", watchdog_thresh_setup);
>
> I wonder if there's some magical way in which we can set any
> sysctl from the kernel command line. Add
> sys.vm.min_free_kbytes=42 to the command line, walk the
> hierarchy late in boot...
A facility like that would be totally awesome - we could remove
a lot of duplicated and outright inconsistent (often missing)
__setup() hackery that way.
Single source of information and all that.
Thanks,
Ingo
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