| 237,6 → 237,7 |
|---|
| * using new stack. Handling the actual context |
| * switch to a new thread. |
| * |
| * Assume THREAD->lock is held. |
| */ |
| static void scheduler_separated_stack(void) |
| { |
| 253,33 → 254,9 |
|---|
| break; |
| |
| case Exiting: |
| frame_free((__address) THREAD->kstack); |
| if (THREAD->ustack) { |
| frame_free((__address) THREAD->ustack); |
| } |
| |
| /* |
| * Detach from the containing task. |
| */ |
| spinlock_lock(&TASK->lock); |
| list_remove(&THREAD->th_link); |
| spinlock_unlock(&TASK->lock); |
| |
| spinlock_unlock(&THREAD->lock); |
| |
| spinlock_lock(&threads_lock); |
| list_remove(&THREAD->threads_link); |
| spinlock_unlock(&threads_lock); |
| |
| spinlock_lock(&CPU->lock); |
| if(CPU->fpu_owner==THREAD) |
| CPU->fpu_owner=NULL; |
| spinlock_unlock(&CPU->lock); |
| |
| free(THREAD); |
| |
| thread_destroy(THREAD); |
| break; |
| |
| |
| case Sleeping: |
| /* |
| * Prefer the thread after it's woken up. |