diff options
Diffstat (limited to 'rust')
| -rw-r--r-- | rust/kernel/sync/condvar.rs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/rust/kernel/sync/condvar.rs b/rust/kernel/sync/condvar.rs index 90108cc6da0b..30fb5cbfb730 100644 --- a/rust/kernel/sync/condvar.rs +++ b/rust/kernel/sync/condvar.rs @@ -159,6 +159,16 @@ impl CondVar { }; } + /// Calls the kernel function to notify one thread synchronously. + /// + /// This method behaves like `notify_one`, except that it hints to the scheduler that the + /// current thread is about to go to sleep, so it should schedule the target thread on the same + /// CPU. + pub fn notify_sync(&self) { + // SAFETY: `wait_queue_head` points to valid memory. + unsafe { bindings::__wake_up_sync(self.wait_queue_head.get(), bindings::TASK_NORMAL) }; + } + /// Wakes a single waiter up, if any. /// /// This is not 'sticky' in the sense that if no thread is waiting, the notification is lost |