| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 019/140] tick-sched: Check tick_nohz_enabled in tick_nohz_switch_to_nohz() | Date | Wed, 28 May 2014 21:32:38 -0700 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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From: Viresh Kumar <viresh.kumar@linaro.org>
commit 27630532ef5ead28b98cfe28d8f95222ef91c2b7 upstream.
Since commit d689fe222 (NOHZ: Check for nohz active instead of nohz enabled) the tick_nohz_switch_to_nohz() function returns because it checks for the tick_nohz_active flag. This can't be set, because the function itself sets it.
Undo the change in tick_nohz_switch_to_nohz().
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: linaro-kernel@lists.linaro.org Cc: fweisbec@gmail.com Cc: Arvind.Chauhan@arm.com Cc: linaro-networking@linaro.org Link: http://lkml.kernel.org/r/40939c05f2d65d781b92b20302b02243d0654224.1397537987.git.viresh.kumar@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- kernel/time/tick-sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -970,7 +970,7 @@ static void tick_nohz_switch_to_nohz(voi struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched); ktime_t next; - if (!tick_nohz_active) + if (!tick_nohz_enabled) return; local_irq_disable();
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