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sched: sched_rt_entity

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Move the task_struct members specific to rt scheduling together.
A future optimization could be to put sched_entity and sched_rt_entity
into a union.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
CC: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2008-01-25 21:08:27 +01:00 • committed by Ingo Molnar
parent 8eb703e4f3
commit fa717060f1
5 changed files with 21 additions and 16 deletions
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5
include/linux/init_task.h
View file

@ -133,9 +133,10 @@ extern struct group_info init_groups;
.nr_cpus_allowed = NR_CPUS, \
.mm = NULL, \
.active_mm = &init_mm, \
.run_list = LIST_HEAD_INIT(tsk.run_list), \
.rt = { \
.run_list = LIST_HEAD_INIT(tsk.rt.run_list), \
.time_slice = HZ, }, \
.ioprio = 0, \
.time_slice = HZ, \
.tasks = LIST_HEAD_INIT(tsk.tasks), \
.ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \
.ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \

8
include/linux/sched.h
View file

@ -929,6 +929,11 @@ struct sched_entity {
#endif
};
struct sched_rt_entity {
struct list_head run_list;
unsigned int time_slice;
};
struct task_struct {
volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
void *stack;
@ -945,9 +950,9 @@ struct task_struct {
#endif
int prio, static_prio, normal_prio;
struct list_head run_list;
const struct sched_class *sched_class;
struct sched_entity se;
struct sched_rt_entity rt;
#ifdef CONFIG_PREEMPT_NOTIFIERS
/* list of struct preempt_notifier: */
@ -972,7 +977,6 @@ struct task_struct {
unsigned int policy;
cpumask_t cpus_allowed;
int nr_cpus_allowed;
unsigned int time_slice;
#ifdef CONFIG_PREEMPT_RCU
int rcu_read_lock_nesting;