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e731832b11
It isn't guaranteed a CPU will idle upon calling lpm_cpuidle_enter(), since it could abort early at the need_resched() check. In this case, it's possible for an IPI to be sent to this "idle" CPU needlessly, thus wasting power. For the same reason, it's also wasteful to keep a CPU marked idle even after it's woken up. Reduce the window that CPUs are marked idle to as small as it can be in order to improve power consumption. Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: azrim <mirzaspc@gmail.com>