DragonOS-Community/DragonOS
4
1
Fork 0
mirror of https://github.com/DragonOS-Community/DragonOS.git synced 2025-06-18 16:26:31 +00:00
Code Issues Releases Wiki Activity

🆕 fork

Browse Source
This commit is contained in:
fslongjin
2022-05-04 23:20:39 +08:00
parent 2ed8bdcfd2
commit 1801ddffbd
6 changed files with 430 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
kernel/sched/sched.c
View File

@ -51,13 +51,13 @@ void sched_cfs_enqueue(struct process_control_block *pcb)
void sched_cfs()
{
cli();
current_pcb->flags &= ~PROC_NEED_SCHED;
current_pcb->flags &= ~PF_NEED_SCHED;
struct process_control_block *proc = sched_cfs_dequeue();
if (current_pcb->virtual_runtime >= proc->virtual_runtime || current_pcb->state != PROC_RUNNING) // 当前进程运行时间大于了下一进程的运行时间，进行切换
{
if (current_pcb->state = PROC_RUNNING) // 本次切换由于时间片到期引发，则再次加入就绪队列，否则交由其它功能模块进行管理
if (current_pcb->state == PROC_RUNNING) // 本次切换由于时间片到期引发，则再次加入就绪队列，否则交由其它功能模块进行管理
sched_cfs_enqueue(current_pcb);
if (sched_cfs_ready_queue[proc_current_cpu_id].cpu_exec_proc_jiffies <= 0)
@ -75,6 +75,7 @@ void sched_cfs()
}
}
// kdebug("before switch, next.rip = %#018lx\tnext->gs=%#018lx", proc->thread->rip, proc->thread->gs);
process_switch_mm(current_pcb, proc);
switch_proc(current_pcb, proc);
}
else // 不进行切换
@ -127,7 +128,7 @@ void sched_update_jiffies()
}
// 时间片耗尽，标记可调度
if (sched_cfs_ready_queue[proc_current_cpu_id].cpu_exec_proc_jiffies <= 0)
current_pcb->flags |= PROC_NEED_SCHED;
current_pcb->flags |= PF_NEED_SCHED;
}
/**