diff options
Diffstat (limited to 'include/linux/preempt.h')
| -rw-r--r-- | include/linux/preempt.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/preempt.h b/include/linux/preempt.h index 72b1a10a59b..2e681d9555b 100644 --- a/include/linux/preempt.h +++ b/include/linux/preempt.h @@ -105,6 +105,11 @@ struct preempt_notifier; * @sched_out: we've just been preempted * notifier: struct preempt_notifier for the task being preempted * next: the task that's kicking us out + * + * Please note that sched_in and out are called under different + * contexts. sched_out is called with rq lock held and irq disabled + * while sched_in is called without rq lock and irq enabled. This + * difference is intentional and depended upon by its users. */ struct preempt_ops { void (*sched_in)(struct preempt_notifier *notifier, int cpu); |