[GIT pull] scheduler fixes for 4.17

From: Thomas Gleixner
Date: Sun May 20 2018 - 03:44:25 EST


Linus,

please pull the latest sched-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-urgent-for-linus

Three trivial fixlets for the scheduler:

- Move print_rt_rq() and print_dl_rq() declarations to the right place

- Make grub_reclaim() static

- Fix the bogus documentation reference in Kconfig

Thanks,

tglx

------------------>
Mathieu Malaterre (2):
sched/debug: Move the print_rt_rq() and print_dl_rq() declarations to kernel/sched/sched.h
sched/deadline: Make the grub_reclaim() function static

Sebastian Andrzej Siewior (1):
sched/fair: Fix documentation file path


init/Kconfig | 2 +-
kernel/sched/deadline.c | 4 +---
kernel/sched/rt.c | 2 --
kernel/sched/sched.h | 5 +++--
4 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index f013afc74b11..18b151f0ddc1 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -738,7 +738,7 @@ config CFS_BANDWIDTH
tasks running within the fair group scheduler. Groups with no limit
set are considered to be unconstrained and will run with no
restriction.
- See tip/Documentation/scheduler/sched-bwc.txt for more information.
+ See Documentation/scheduler/sched-bwc.txt for more information.

config RT_GROUP_SCHED
bool "Group scheduling for SCHED_RR/FIFO"
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index e7b3008b85bb..1356afd1eeb6 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1117,7 +1117,7 @@ extern bool sched_rt_bandwidth_account(struct rt_rq *rt_rq);
* should be larger than 2^(64 - 20 - 8), which is more than 64 seconds.
* So, overflow is not an issue here.
*/
-u64 grub_reclaim(u64 delta, struct rq *rq, struct sched_dl_entity *dl_se)
+static u64 grub_reclaim(u64 delta, struct rq *rq, struct sched_dl_entity *dl_se)
{
u64 u_inact = rq->dl.this_bw - rq->dl.running_bw; /* Utot - Uact */
u64 u_act;
@@ -2731,8 +2731,6 @@ bool dl_cpu_busy(unsigned int cpu)
#endif

#ifdef CONFIG_SCHED_DEBUG
-extern void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq);
-
void print_dl_stats(struct seq_file *m, int cpu)
{
print_dl_rq(m, cpu, &cpu_rq(cpu)->dl);
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 7aef6b4e885a..ef3c4e6f5345 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -2701,8 +2701,6 @@ int sched_rr_handler(struct ctl_table *table, int write,
}

#ifdef CONFIG_SCHED_DEBUG
-extern void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq);
-
void print_rt_stats(struct seq_file *m, int cpu)
{
rt_rq_iter_t iter;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 15750c222ca2..1f0a4bc6a39d 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2025,8 +2025,9 @@ extern bool sched_debug_enabled;
extern void print_cfs_stats(struct seq_file *m, int cpu);
extern void print_rt_stats(struct seq_file *m, int cpu);
extern void print_dl_stats(struct seq_file *m, int cpu);
-extern void
-print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq);
+extern void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq);
+extern void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq);
+extern void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq);
#ifdef CONFIG_NUMA_BALANCING
extern void
show_numa_stats(struct task_struct *p, struct seq_file *m);