From a22e47a4e3f5a9e50a827c5d94705ace3b1eac0b Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 21 Dec 2017 10:01:24 +0100 Subject: sched/core: Convert nohz_flags to atomic_t Using atomic_t allows us to use the more flexible bitops provided there. Also its smaller. Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar --- kernel/sched/sched.h | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'kernel/sched/sched.h') diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 23ba4dd76ac4..d98e761b962f 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -763,7 +763,7 @@ struct rq { #ifdef CONFIG_SMP unsigned long last_load_update_tick; #endif /* CONFIG_SMP */ - unsigned long nohz_flags; + atomic_t nohz_flags; #endif /* CONFIG_NO_HZ_COMMON */ /* capture load from *all* tasks on this CPU: */ @@ -2034,10 +2034,11 @@ extern void cfs_bandwidth_usage_inc(void); extern void cfs_bandwidth_usage_dec(void); #ifdef CONFIG_NO_HZ_COMMON -enum rq_nohz_flag_bits { - NOHZ_TICK_STOPPED, - NOHZ_BALANCE_KICK, -}; +#define NOHZ_TICK_STOPPED_BIT 0 +#define NOHZ_BALANCE_KICK_BIT 1 + +#define NOHZ_TICK_STOPPED BIT(NOHZ_TICK_STOPPED_BIT) +#define NOHZ_BALANCE_KICK BIT(NOHZ_BALANCE_KICK_BIT) #define nohz_flags(cpu) (&cpu_rq(cpu)->nohz_flags) -- cgit v1.2.3