On Fri, 17 Jan 2003, Scott Long wrote:
> Craig Rodrigues wrote:
> > Index: vm_param.h
> > ===================================================================
> > RCS file: /home/ncvs/src/sys/vm/vm_param.h,v
> > retrieving revision 1.16
> > diff -u -r1.16 vm_param.h
> > --- vm_param.h 2003/01/11 07:29:46 1.16
> > +++ vm_param.h 2003/01/17 23:25:52
> > @@ -89,6 +89,8 @@
> > #define VM_SWAPPING_ENABLED 11 /* swapping enabled */
> > #define VM_MAXID 12 /* number of valid vm ids */
> >
> > +#define VM_METER VM_TOTAL /* backwards compatibility, struct vmmeter */
> > +
> > #define CTL_VM_NAMES { \
> > { 0, 0 }, \
> > { "vmtotal", CTLTYPE_STRUCT }, \
> >
> > The only place where VM_METER is used in this directory was in vm_meter.c:
> >
> > 240 SYSCTL_PROC(_vm, VM_METER, vmmeter, CTLTYPE_OPAQUE|CTLFLAG_RD,
> > 241 0, sizeof(struct vmtotal), vmtotal, "S,vmtotal",
> > 242 "System virtual memory statistics");
> >
> > This changed to:
> >
> > 240 SYSCTL_PROC(_vm, VM_TOTAL, vmtotal, CTLTYPE_OPAQUE|CTLFLAG_RD,
> > 241 0, sizeof(struct vmtotal), vmtotal, "S,vmtotal",
> > 242 "System virtual memory statistics");
The sysctl name was changed too (from the confusing but compatible
"vm.vmmeter" to "vm.vmtotal".
The change was mainly about printing the results of the sysctl in sysctl(8).
See followup mail.
> This is ugly and only further perpetuates what appears to be a
> gratuitous API
> change. Let's wait to hear from the submitter (Hiten) and committer
> (Matt) to
> see why this was needed in the first place.
If this change is kept, don't forget to keep the man page (sysctl.3)
to be consistent with the code again.
Bruce
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