[tip: sched/core] sched/deadline: Make two functions static

tip-bot2 for Yu Chen
2020-03-06T14:43:12Z

The following commit has been merged into the sched/core branch of tip:

Commit-ID: ba4f7bc1dee318a0fd9c0e3bd46227aca21ac2f2
Gitweb: https://git.kernel.org/tip/ba4f7bc1dee318a0fd9c0e3bd46227aca21ac2f2
Author: Yu Chen <chen.yu@easystack.cn>
AuthorDate: Fri, 28 Feb 2020 18:03:29 +08:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Fri, 06 Mar 2020 12:57:24 +01:00

sched/deadline: Make two functions static

Since commit 06a76fe08d4 ("sched/deadline: Move DL related code
from sched/core.c to sched/deadline.c"), DL related code moved to
deadline.c.

Make the following two functions static since they're only used in
deadline.c:

dl_change_utilization()
init_dl_rq_bw_ratio()

Signed-off-by: Yu Chen <chen.yu@easystack.cn>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200228100329.16927-1-chen.yu@easystack.cn
---
kernel/sched/deadline.c | 6 ++++--
kernel/sched/sched.h | 2 --
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 43323f8..504d2f5 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -153,7 +153,7 @@ void sub_running_bw(struct sched_dl_entity *dl_se, struct dl_rq *dl_rq)
__sub_running_bw(dl_se->dl_bw, dl_rq);
}

-void dl_change_utilization(struct task_struct *p, u64 new_bw)
+static void dl_change_utilization(struct task_struct *p, u64 new_bw)
{
struct rq *rq;

@@ -334,6 +334,8 @@ static inline int is_leftmost(struct task_struct *p, struct dl_rq *dl_rq)
return dl_rq->root.rb_leftmost == &dl_se->rb_node;
}

+static void init_dl_rq_bw_ratio(struct dl_rq *dl_rq);
+
void init_dl_bandwidth(struct dl_bandwidth *dl_b, u64 period, u64 runtime)
{
raw_spin_lock_init(&dl_b->dl_runtime_lock);
@@ -2496,7 +2498,7 @@ int sched_dl_global_validate(void)
return ret;
}

-void init_dl_rq_bw_ratio(struct dl_rq *dl_rq)
+static void init_dl_rq_bw_ratio(struct dl_rq *dl_rq)
{
if (global_rt_runtime() == RUNTIME_INF) {
dl_rq->bw_ratio = 1 << RATIO_SHIFT;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 7f1a85b..9e173fa 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -305,7 +305,6 @@ bool __dl_overflow(struct dl_bw *dl_b, int cpus, u64 old_bw, u64 new_bw)
dl_b->bw * cpus < dl_b->total_bw - old_bw + new_bw;
}

-extern void dl_change_utilization(struct task_struct *p, u64 new_bw);
extern void init_dl_bw(struct dl_bw *dl_b);
extern int sched_dl_global_validate(void);
extern void sched_dl_do_global(void);
@@ -1905,7 +1904,6 @@ extern struct dl_bandwidth def_dl_bandwidth;
extern void init_dl_bandwidth(struct dl_bandwidth *dl_b, u64 period, u64 runtime);
extern void init_dl_task_timer(struct sched_dl_entity *dl_se);
extern void init_dl_inactive_task_timer(struct sched_dl_entity *dl_se);
-extern void init_dl_rq_bw_ratio(struct dl_rq *dl_rq);

#define BW_SHIFT 20
#define BW_UNIT (1 << BW_SHIFT)