Messages in this thread | | | Date | Sun, 11 Jul 1999 01:23:00 +0200 | From | Matthew Wilcox <> | Subject | Re: Death of KERN_JAVA_* sysctl |
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On Sat, Jul 10, 1999 at 03:43:33PM -0700, Nate Eldredge wrote: > 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.
That's fine then. Java support was marked as `obsolete' in 2.2 and will be removed for 2.4. I'm not quite sure why anyone bothered to remove the constants -- I don't see that it really harms us to leave them in.
-- Matthew Wilcox <willy@bofh.ai> "Windows and MacOS are products, contrived by engineers in the service of specific companies. Unix, by contrast, is not so much a product as it is a painstakingly compiled oral history of the hacker subculture." - N Stephenson
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