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| author |   Youquan Song <youquan.song@intel.com> | 2012-10-26 12:26:59 +0200 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2012-11-15 00:34:20 +0100 |
| commit | d73d68dc49e09143e8e3bef10670a021c26ec4a5 (patch) | |
| tree | 1efde05ffcfcbe38ac3cb6900c8f01b70d0ec066 /include/linux/cpuidle.h | |
| parent | cpuidle: Quickly notice prediction failure in general case (diff) | |
| download | linux-dev-d73d68dc49e09143e8e3bef10670a021c26ec4a5.tar.xz linux-dev-d73d68dc49e09143e8e3bef10670a021c26ec4a5.zip | |
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>
Diffstat (limited to 'include/linux/cpuidle.h')
0 files changed, 0 insertions, 0 deletions