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| author | Rafael J. Wysocki <[email protected]> | 2016-01-15 23:56:34 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2016-01-19 14:28:23 +0000 |
| commit | 5bb1729cbdfbe974ad6385be94b14afbac97e19f (patch) | |
| tree | 6a594c2ef4f971024f5b536c526f905a9d868f1a /net/unix/garbage.c | |
| parent | sched / idle: Drop default_idle_call() fallback from call_cpuidle() (diff) | |
| download | kernel-5bb1729cbdfbe974ad6385be94b14afbac97e19f.tar.gz kernel-5bb1729cbdfbe974ad6385be94b14afbac97e19f.zip | |
cpuidle: menu: Avoid pointless checks in menu_select()
If menu_select() cannot find a suitable state to return, it will
return the state index stored in data->last_state_idx. This
means that it is pointless to look at the states whose indices
are less than or equal to data->last_state_idx in the main loop,
so don't do that.
Given that those checks are done on every idle state selection, this
change can save quite a bit of completely unnecessary overhead.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Tested-by: Sudeep Holla <[email protected]>
Diffstat (limited to 'net/unix/garbage.c')
0 files changed, 0 insertions, 0 deletions