[PATCHv2 5/7] sched: Change root_domain->overload type to int

From: Morten Rasmussen
Date: Thu Mar 15 2018 - 10:48:13 EST


From: Valentin Schneider <valentin.schneider@xxxxxxx>

sizeof(_Bool) is implementation defined, so let's just go with 'int' as
is done for other structures e.g. sched_domain_shared->has_idle_cores.

cc: Ingo Molnar <mingo@xxxxxxxxxx>
cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>

Signed-off-by: Valentin Schneider <valentin.schneider@xxxxxxx>
Signed-off-by: Morten Rasmussen <morten.rasmussen@xxxxxxx>
---
kernel/sched/fair.c | 7 +++----
kernel/sched/sched.h | 4 ++--
2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index c791dd7ac9a8..fe4824a37302 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7969,7 +7969,7 @@ static bool update_nohz_stats(struct rq *rq, bool force)
static inline void update_sg_lb_stats(struct lb_env *env,
struct sched_group *group, int load_idx,
int local_group, struct sg_lb_stats *sgs,
- bool *overload)
+ int *overload)
{
unsigned long load;
int i, nr_running;
@@ -7994,7 +7994,7 @@ static inline void update_sg_lb_stats(struct lb_env *env,

nr_running = rq->nr_running;
if (nr_running > 1)
- *overload = true;
+ *overload = 1;

#ifdef CONFIG_NUMA_BALANCING
sgs->nr_numa_running += rq->nr_numa_running;
@@ -8143,8 +8143,7 @@ static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd
struct sched_group *sg = env->sd->groups;
struct sg_lb_stats *local = &sds->local_stat;
struct sg_lb_stats tmp_sgs;
- int load_idx, prefer_sibling = 0;
- bool overload = false;
+ int load_idx, prefer_sibling, overload = 0;

if (child && child->flags & SD_PREFER_SIBLING)
prefer_sibling = 1;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 22177dfc1f04..5379f647016d 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -689,7 +689,7 @@ struct root_domain {
cpumask_var_t online;

/* Indicate more than one runnable task for any CPU */
- bool overload;
+ int overload;

/*
* The bit corresponding to a CPU gets set here if such CPU has more
@@ -1652,7 +1652,7 @@ static inline void add_nr_running(struct rq *rq, unsigned count)
if (prev_nr < 2 && rq->nr_running >= 2) {
#ifdef CONFIG_SMP
if (!rq->rd->overload)
- rq->rd->overload = true;
+ rq->rd->overload = 1;
#endif
}

--
2.7.4