diff options
Diffstat (limited to 'include/linux/sched/wake_q.h')
| -rw-r--r-- | include/linux/sched/wake_q.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/sched/wake_q.h b/include/linux/sched/wake_q.h index 10b19a192b2d..545f37138057 100644 --- a/include/linux/sched/wake_q.h +++ b/include/linux/sched/wake_q.h | |||
| @@ -24,9 +24,13 @@ | |||
| 24 | * called near the end of a function. Otherwise, the list can be | 24 | * called near the end of a function. Otherwise, the list can be |
| 25 | * re-initialized for later re-use by wake_q_init(). | 25 | * re-initialized for later re-use by wake_q_init(). |
| 26 | * | 26 | * |
| 27 | * Note that this can cause spurious wakeups. schedule() callers | 27 | * NOTE that this can cause spurious wakeups. schedule() callers |
| 28 | * must ensure the call is done inside a loop, confirming that the | 28 | * must ensure the call is done inside a loop, confirming that the |
| 29 | * wakeup condition has in fact occurred. | 29 | * wakeup condition has in fact occurred. |
| 30 | * | ||
| 31 | * NOTE that there is no guarantee the wakeup will happen any later than the | ||
| 32 | * wake_q_add() location. Therefore task must be ready to be woken at the | ||
| 33 | * location of the wake_q_add(). | ||
| 30 | */ | 34 | */ |
| 31 | 35 | ||
| 32 | #include <linux/sched.h> | 36 | #include <linux/sched.h> |