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| /linux/drivers/cpuidle/ |
| H A D | cpuidle.c | diff d73d68dc49e09143e8e3bef10670a021c26ec4a5 Fri Oct 26 12:26:59 CEST 2012 Youquan Song <youquan.song@intel.com> cpuidle: Set residency to 0 if target Cstate not enter
When cpuidle governor choose a C-state to enter for idle CPU, but it notice that
there is tasks request to be executed. So the idle CPU will not really enter
the target C-state and go to run task.
In this situation, it will use the residency of previous really entered target
C-states. Obviously, it is not reasonable.
So, this patch fix it by set the target C-state residency to 0.
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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