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sched/deadline: Remove unused def_dl_bandwidth 

Since commit 1724813d9f ("sched/deadline: Remove the sysctl_sched_dl
knobs") the default deadline bandwidth control structure has no purpose.
Remove it.

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Link: https://lore.kernel.org/r/20220302183433.333029-2-dietmar.eggemann@arm.com
This commit is contained in:
Dietmar Eggemann 2022-03-02 19:34:28 +01:00 committed by Peter Zijlstra
parent 25795ef629
commit eb77cf1c15
3 changed files with 0 additions and 9 deletions
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1
kernel/sched/core.c
View File

@ -9420,7 +9420,6 @@ void __init sched_init(void)
#endif /* CONFIG_CPUMASK_OFFSTACK */ #endif /* CONFIG_CPUMASK_OFFSTACK */
init_rt_bandwidth(&def_rt_bandwidth, global_rt_period(), global_rt_runtime()); init_rt_bandwidth(&def_rt_bandwidth, global_rt_period(), global_rt_runtime());
init_dl_bandwidth(&def_dl_bandwidth, global_rt_period(), global_rt_runtime());
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
init_defrootdomain(); init_defrootdomain();

7
kernel/sched/deadline.c
View File

@ -18,8 +18,6 @@
#include "sched.h" #include "sched.h"
#include "pelt.h" #include "pelt.h"
struct dl_bandwidth def_dl_bandwidth;
static inline struct task_struct *dl_task_of(struct sched_dl_entity *dl_se) static inline struct task_struct *dl_task_of(struct sched_dl_entity *dl_se)
{ {
return container_of(dl_se, struct task_struct, dl); return container_of(dl_se, struct task_struct, dl);
@ -423,12 +421,10 @@ void init_dl_bandwidth(struct dl_bandwidth *dl_b, u64 period, u64 runtime)
void init_dl_bw(struct dl_bw *dl_b) void init_dl_bw(struct dl_bw *dl_b)
{ {
raw_spin_lock_init(&dl_b->lock); raw_spin_lock_init(&dl_b->lock);
raw_spin_lock(&def_dl_bandwidth.dl_runtime_lock);
if (global_rt_runtime() == RUNTIME_INF) if (global_rt_runtime() == RUNTIME_INF)
dl_b->bw = -1; dl_b->bw = -1;
else else
dl_b->bw = to_ratio(global_rt_period(), global_rt_runtime()); dl_b->bw = to_ratio(global_rt_period(), global_rt_runtime());
raw_spin_unlock(&def_dl_bandwidth.dl_runtime_lock);
dl_b->total_bw = 0; dl_b->total_bw = 0;
} }
@ -2731,9 +2727,6 @@ void sched_dl_do_global(void)
int cpu; int cpu;
unsigned long flags; unsigned long flags;
def_dl_bandwidth.dl_period = global_rt_period();
def_dl_bandwidth.dl_runtime = global_rt_runtime();
if (global_rt_runtime() != RUNTIME_INF) if (global_rt_runtime() != RUNTIME_INF)
new_bw = to_ratio(global_rt_period(), global_rt_runtime()); new_bw = to_ratio(global_rt_period(), global_rt_runtime());

1
kernel/sched/sched.h
View File

@ -2333,7 +2333,6 @@ extern void resched_cpu(int cpu);
extern struct rt_bandwidth def_rt_bandwidth; extern struct rt_bandwidth def_rt_bandwidth;
extern void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime); extern void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime);
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_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_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_inactive_task_timer(struct sched_dl_entity *dl_se);