gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mcreboot: -h to indicate halting CPU in idle threads (e.g., in futex_wait())

Browse Source
This commit is contained in:
Balazs Gerofi
2017-12-18 11:22:15 +09:00
parent bf2f38051b
commit 589504dc33
5 changed files with 26 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
kernel/process.c
View File

@ -100,6 +100,8 @@ extern void perf_reset(struct mc_perf_event *event);
struct list_head resource_set_list;
mcs_rwlock_lock_t resource_set_lock;
int idle_halt = 0;
void
init_process(struct process *proc, struct process *parent)
{
@ -3044,6 +3046,12 @@ void spin_sleep_or_schedule(void)
int woken = 0;
long irqstate;
/* Spinning disabled explicitly */
if (idle_halt) {
dkprintf("%s: idle_halt -> schedule()\n", __FUNCTION__);
goto out_schedule;
}
/* Try to spin sleep */
irqstate = ihk_mc_spinlock_lock(&thread->spin_sleep_lock);
if (thread->spin_sleep == 0) {
@ -3092,6 +3100,7 @@ void spin_sleep_or_schedule(void)
cpu_pause();
}
out_schedule:
schedule();
}