sched: don't export sched_mc_power_savings in laptops
authorMahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Sat, 29 Nov 2008 11:20:12 +0000 (16:20 +0530)
committerIngo Molnar <mingo@elte.hu>
Mon, 1 Dec 2008 07:44:00 +0000 (08:44 +0100)
commit43714539eab42b2fa3653ea7bd667b36c2291b11
tree43de6a8062510c4014eb9343a5f164a79423e1ae
parentd9d060a98ff89fe0f86e24c9c0c3d2f0c566781c
sched: don't export sched_mc_power_savings in laptops

Impact: do not expose a control that has no effect

Fix to prevent sched_mc_power_saving from being exported through sysfs
on single-socket systems. (Say multicore single socket (Laptop))

CPU core map of the boot cpu should be equal to possible number
of cpus for single socket system.

This fix has been developed at FOSS.in kernel workout.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/include/asm/topology.h