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sched: Make newidle_balance() static again

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[ Upstream commit d91cecc156620ec75d94c55369509c807c3d07e6 ]

After Commit 6e2df0581f ("sched: Fix pick_next_task() vs 'change'
pattern race"), there is no need to expose newidle_balance() as it
is only used within fair.c file. Change this function back to static again.

No functional change.

Reported-by: kbuild test robot <lkp@intel.com>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/83cd3030b031ca5d646cd5e225be10e7a0fdd8f5.1587464698.git.yu.c.chen@intel.com
Stable-dep-of: 17e3e88ed0b6 ("sched/fair: Fix pelt lost idle time detection")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chen Yu 2020-04-21 18:50:34 +08:00 • committed by Greg Kroah-Hartman
commit d8dd04003c
2 changed files with 4 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

6
kernel/sched/fair.c
View file

@ -3690,6 +3690,8 @@ static inline unsigned long cfs_rq_load_avg(struct cfs_rq *cfs_rq)
return cfs_rq->avg.load_avg;
}
static int newidle_balance(struct rq *this_rq, struct rq_flags *rf);
static inline unsigned long task_util(struct task_struct *p)
{
return READ_ONCE(p->se.avg.util_avg);
@ -3849,7 +3851,7 @@ attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags
static inline void
detach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se) {}
static inline int idle_balance(struct rq *rq, struct rq_flags *rf)
static inline int newidle_balance(struct rq *rq, struct rq_flags *rf)
{
return 0;
}
@ -9898,7 +9900,7 @@ static inline void nohz_newidle_balance(struct rq *this_rq) { }
* idle_balance is called by schedule() if this_cpu is about to become
* idle. Attempts to pull tasks from other CPUs.
*/
int newidle_balance(struct rq *this_rq, struct rq_flags *rf)
static int newidle_balance(struct rq *this_rq, struct rq_flags *rf)
{
unsigned long next_balance = jiffies + HZ;
int this_cpu = this_rq->cpu;

4
kernel/sched/sched.h
View file

@ -1464,14 +1464,10 @@ static inline void unregister_sched_domain_sysctl(void)
}
#endif
extern int newidle_balance(struct rq *this_rq, struct rq_flags *rf);
#else
static inline void sched_ttwu_pending(void) { }
static inline int newidle_balance(struct rq *this_rq, struct rq_flags *rf) { return 0; }
#endif /* CONFIG_SMP */
#include "stats.h"