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磁盘请求在处理时，切换进程

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This commit is contained in:
fslongjin
2022-04-19 15:13:59 +08:00
parent 0e8bf69d65
commit 39dd802ff1
14 changed files with 257 additions and 206 deletions
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8
kernel/sched/sched.c
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@ -50,11 +50,11 @@ void sched_cfs_enqueue(struct process_control_block *pcb)
*/
void sched_cfs()
{
current_pcb->flags &= ~PROC_NEED_SCHED;
struct process_control_block *proc = sched_cfs_dequeue();
if (current_pcb->virtual_runtime >= proc->virtual_runtime) // 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->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
@ -107,8 +107,8 @@ void sched_cfs()
*/
void sched_update_jiffies()
{
if(current_pcb->cpu_id == 0)
return;
//if (current_pcb->cpu_id == 0)
// return;
switch (current_pcb->priority)
{
case 0: