diff options
Diffstat (limited to 'kernel/srcu.c')
-rw-r--r-- | kernel/srcu.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/kernel/srcu.c b/kernel/srcu.c index f098f1768215..e34f2991ed41 100644 --- a/kernel/srcu.c +++ b/kernel/srcu.c | |||
@@ -477,12 +477,11 @@ EXPORT_SYMBOL_GPL(synchronize_srcu); | |||
477 | * Wait for an SRCU grace period to elapse, but be more aggressive about | 477 | * Wait for an SRCU grace period to elapse, but be more aggressive about |
478 | * spinning rather than blocking when waiting. | 478 | * spinning rather than blocking when waiting. |
479 | * | 479 | * |
480 | * Note that it is illegal to call this function while holding any lock | 480 | * Note that it is also illegal to call synchronize_srcu_expedited() |
481 | * that is acquired by a CPU-hotplug notifier. It is also illegal to call | 481 | * from the corresponding SRCU read-side critical section; |
482 | * synchronize_srcu_expedited() from the corresponding SRCU read-side | 482 | * doing so will result in deadlock. However, it is perfectly legal |
483 | * critical section; doing so will result in deadlock. However, it is | 483 | * to call synchronize_srcu_expedited() on one srcu_struct from some |
484 | * perfectly legal to call synchronize_srcu_expedited() on one srcu_struct | 484 | * other srcu_struct's read-side critical section, as long as |
485 | * from some other srcu_struct's read-side critical section, as long as | ||
486 | * the resulting graph of srcu_structs is acyclic. | 485 | * the resulting graph of srcu_structs is acyclic. |
487 | */ | 486 | */ |
488 | void synchronize_srcu_expedited(struct srcu_struct *sp) | 487 | void synchronize_srcu_expedited(struct srcu_struct *sp) |