-Export cpu topology info by sysfs. Items (attributes) are similar
+Export cpu topology info via sysfs. Items (attributes) are similar
to /proc/cpuinfo.
1) /sys/devices/system/cpu/cpuX/topology/physical_package_id:
represent the thread siblings to cpu X in the same physical package;
To implement it in an architecture-neutral way, a new source file,
-driver/base/topology.c, is to export the 5 attributes.
+drivers/base/topology.c, is to export the 4 attributes.
If one architecture wants to support this feature, it just needs to
implement 4 defines, typically in file include/asm-XXX/topology.h.