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nohz: Convert tick_nohz_tick_stopped() to bool 

It makes this function more self-explanatory about what it does and how
to use it.

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Wanpeng Li <kernellwp@gmail.com>
Link: http://lkml.kernel.org/r/1519186649-3242-3-git-send-email-frederic@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Frederic Weisbecker 2018-02-21 05:17:24 +01:00 committed by Ingo Molnar
parent 77a021be38
commit a364298359
2 changed files with 2 additions and 2 deletions
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2
include/linux/tick.h
View File

@ -113,7 +113,7 @@ enum tick_dep_bits {
#ifdef CONFIG_NO_HZ_COMMON #ifdef CONFIG_NO_HZ_COMMON
extern bool tick_nohz_enabled; extern bool tick_nohz_enabled;
extern int tick_nohz_tick_stopped(void); extern bool tick_nohz_tick_stopped(void);
extern void tick_nohz_idle_enter(void); extern void tick_nohz_idle_enter(void);
extern void tick_nohz_idle_exit(void); extern void tick_nohz_idle_exit(void);
extern void tick_nohz_irq_exit(void); extern void tick_nohz_irq_exit(void);

2
kernel/time/tick-sched.c
View File

@ -481,7 +481,7 @@ static int __init setup_tick_nohz(char *str)
__setup("nohz=", setup_tick_nohz); __setup("nohz=", setup_tick_nohz);
int tick_nohz_tick_stopped(void) bool tick_nohz_tick_stopped(void)
{ {
return __this_cpu_read(tick_cpu_sched.tick_stopped); return __this_cpu_read(tick_cpu_sched.tick_stopped);
} }