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-rw-r--r--kernel/sched.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index dbd4490afec1..e9ff04a9b56d 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3577,6 +3577,32 @@ task_t *idle_task(int cpu)
3577} 3577}
3578 3578
3579/** 3579/**
3580 * curr_task - return the current task for a given cpu.
3581 * @cpu: the processor in question.
3582 */
3583task_t *curr_task(int cpu)
3584{
3585 return cpu_curr(cpu);
3586}
3587
3588/**
3589 * set_curr_task - set the current task for a given cpu.
3590 * @cpu: the processor in question.
3591 * @p: the task pointer to set.
3592 *
3593 * Description: This function must only be used when non-maskable interrupts
3594 * are serviced on a separate stack. It allows the architecture to switch the
3595 * notion of the current task on a cpu in a non-blocking manner. This function
3596 * must be called with interrupts disabled, the caller must save the original
3597 * value of the current task (see curr_task() above) and restore that value
3598 * before reenabling interrupts.
3599 */
3600void set_curr_task(int cpu, task_t *p)
3601{
3602 cpu_curr(cpu) = p;
3603}
3604
3605/**
3580 * find_process_by_pid - find a process with a matching PID value. 3606 * find_process_by_pid - find a process with a matching PID value.
3581 * @pid: the pid in question. 3607 * @pid: the pid in question.
3582 */ 3608 */