diff options
| author | Anton Blanchard <anton@samba.org> | 2017-04-03 23:54:13 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-04-19 23:17:18 +0200 |
| commit | 26eb48a9faf241abd60aa546e6beb896011667c1 (patch) | |
| tree | bd271ab049d8cbd2d20b8a8d443c40610cf194c9 /drivers/cpuidle/cpuidle-powernv.c | |
| parent | cpuidle: powernv: Don't bounce between low and very low thread priority (diff) | |
| download | linux-26eb48a9faf241abd60aa546e6beb896011667c1.tar.xz linux-26eb48a9faf241abd60aa546e6beb896011667c1.zip | |
cpuidle: powernv: Don't continually set thread priority in snooze_loop()
The powerpc64 kernel exception handlers have preserved thread priorities
for a long time now, so there is no need to continually set it.
Just set it once on entry and once exit.
Signed-off-by: Anton Blanchard <anton@samba.org>
Reviewed-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpuidle/cpuidle-powernv.c')
| -rw-r--r-- | drivers/cpuidle/cpuidle-powernv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c index 0ddf1a5bb0a9..f8901671fff4 100644 --- a/drivers/cpuidle/cpuidle-powernv.c +++ b/drivers/cpuidle/cpuidle-powernv.c @@ -56,8 +56,8 @@ static int snooze_loop(struct cpuidle_device *dev, snooze_exit_time = get_tb() + snooze_timeout; ppc64_runlatch_off(); + HMT_very_low(); while (!need_resched()) { - HMT_very_low(); if (snooze_timeout_en && get_tb() > snooze_exit_time) break; } |