CVSROOT: /cvs
Module name: src
Changes by: m...@cvs.openbsd.org 2024/08/02 08:34:45
Modified files:
sys/kern : kern_sysctl.c syscalls.master
sys/sys : sysctl.h
Log message:
Push kernel lock down to sysctl(2).
Unlock few obvious immutable or read-only variables from "kern.*" and
"hw.*" paths. Keep the rest variables locked as before, include pages
wiring. Use new sysctl_vs{,un}lock() functions introduced for thar
purpose.
In kern.* path:
- KERN_OSTYPE, KERN_OSRELEASE, KERN_OSVERSION, KERN_VERSION -
immutable;
- KERN_NUMVNODES - read-only access to integer;
- KERN_MBSTAT - read-only access to per-CPU counters;
In hw.* path:
- HW_MACHINE, HW_MODEL, HW_NCPUONLINE, HW_PHYSMEM, HW_VENDOR,
HW_PRODUCT, HW_VERSION, HW_SERIALNO, HW_UUID, HW_PHYSMEM64 -
immutable;
- HW_USERMEM and HW_USERMEM64 - `physmem' is immutable, uvmexp.wired
is mutable but integer; read-only access to localy stored difference
between `physmem' and uvmexp.wired;
- `hw_vars' - read-only access to integers; some of them like
HW_BYTEORDER and HW_PAGESIZE are immutable;
ok bluhm kettenis
