https://github.com/torvalds/linux
Revision e43d0189ac02415fe4487f79fc35e8f147e9ea0d authored by Jisheng Zhang on 20 August 2015, 04:54:39 UTC, committed by Thomas Gleixner on 20 August 2015, 19:37:45 UTC
Commit b253149b843f ("sched/idle/x86: Restore mwait_idle() to fix boot
hangs, to improve power savings and to improve performance") restores
mwait_idle(), but the trace_cpu_idle related calls are missing. This
causes powertop on my old desktop powered by Intel Core2 E6550 to
report zero wakeups and zero events.

Add them back to restore the proper behaviour.

Fixes: b253149b843f ("sched/idle/x86: Restore mwait_idle() to ...")
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Cc: <len.brown@intel.com>
Cc: stable@vger.kernel.org # 4.1
Link: http://lkml.kernel.org/r/1440046479-4262-1-git-send-email-jszhang@marvell.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
1 parent b5be5b7
History
Tip revision: e43d0189ac02415fe4487f79fc35e8f147e9ea0d authored by Jisheng Zhang on 20 August 2015, 04:54:39 UTC
x86/idle: Restore trace_cpu_idle to mwait_idle() calls
Tip revision: e43d018
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