diff options
Diffstat (limited to 'kernel/sched/wait.c')
| -rw-r--r-- | kernel/sched/wait.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c index 7d50f794e248..0ffa20ae657b 100644 --- a/kernel/sched/wait.c +++ b/kernel/sched/wait.c | |||
| @@ -394,7 +394,7 @@ EXPORT_SYMBOL(__wake_up_bit); | |||
| 394 | * | 394 | * |
| 395 | * In order for this to function properly, as it uses waitqueue_active() | 395 | * In order for this to function properly, as it uses waitqueue_active() |
| 396 | * internally, some kind of memory barrier must be done prior to calling | 396 | * internally, some kind of memory barrier must be done prior to calling |
| 397 | * this. Typically, this will be smp_mb__after_clear_bit(), but in some | 397 | * this. Typically, this will be smp_mb__after_atomic(), but in some |
| 398 | * cases where bitflags are manipulated non-atomically under a lock, one | 398 | * cases where bitflags are manipulated non-atomically under a lock, one |
| 399 | * may need to use a less regular barrier, such fs/inode.c's smp_mb(), | 399 | * may need to use a less regular barrier, such fs/inode.c's smp_mb(), |
| 400 | * because spin_unlock() does not guarantee a memory barrier. | 400 | * because spin_unlock() does not guarantee a memory barrier. |