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add shutdown check in the scheduler => if true, switch to the idle task

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Stefan Lankes 2016-03-25 09:22:42 +01:00
parent 695e4e9dc9
commit 5048c3d3eb
1 changed files with 8 additions and 0 deletions
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8
hermit/kernel/tasks.c
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@ -782,6 +782,14 @@ size_t** scheduler(void)
readyqueues[core_id].old_task = curr_task;
else readyqueues[core_id].old_task = NULL; // reset old task
// do we receive a shutdown IPI => only the idle task should get the core
if (BUILTIN_EXPECT(go_down, 0)) {
if (curr_task->status == TASK_IDLE)
goto get_task_out;
curr_task = readyqueues[core_id].idle;
set_per_core(current_task, curr_task);
}
prio = msb(readyqueues[core_id].prio_bitmap); // determines highest priority
if (prio > MAX_PRIO) {
if ((curr_task->status == TASK_RUNNING) || (curr_task->status == TASK_IDLE))