Re: Death of KERN_JAVA_* sysctl

Nate Eldredge (nate@cartsys.com)
Sat, 10 Jul 1999 15:43:33 -0700

Matthew Wilcox wrote:
>
> On Sun, Jul 11, 1999 at 12:11:48AM +0200, Ralf Baechle wrote:
> > On Sat, Jul 10, 1999 at 01:12:57PM -0700, Nate Eldredge wrote:
> >
> > > Why have KERN_JAVA_* been removed from linux/sysctl.h? (as of 2.3.9)
> > >
> > > This is a problem for anything in userspace that uses these values; it
> > > won't compile anymore, and since it's an enum there's no way to check
> > > for it. (strace uses them, for one.)
> >
> > It's not the first time that sysctl got broken that way.
>
> Last time sysctl got broken that way, I went through and explicitly
> numbered all the sysctls. Someone would now have to be particularly
> and obviously stupid to break sysctl.

Like this? (From patch-2.3.9)

--- v2.3.8/linux/include/linux/sysctl.h Thu Jun 3 16:21:47 1999
+++ linux/include/linux/sysctl.h Fri Jun 25 01:05:12 1999
@@ -82,8 +82,6 @@
KERN_PANIC=15, /* int: panic timeout */
KERN_REALROOTDEV=16, /* real root device to mount after
initrd */

- KERN_JAVA_INTERPRETER=19, /* path to Java(tm) interpreter */
- KERN_JAVA_APPLETVIEWER=20, /* path to Java(tm) appletviewer */
KERN_SPARC_REBOOT=21, /* reboot command on Sparc */
KERN_CTLALTDEL=22, /* int: allow ctl-alt-del to reboot */
KERN_PRINTK=23, /* struct: control printk logging
parameters */

Does that mean that it shouldn't have been done?

Oh, clarification-- I meant, anything that uses KERN_JAVA_* will break.
Use of the other constants still has no problems.

-- 


Nate Eldredge
nate@cartsys.com


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