On 11/22/2022 9:45 AM, Thomas Gleixner wrote:

+/**
+ * try_to_del_timer_sync - Try to deactivate a timer
+ * @timer:	Timer to deactivate
+ *
+ * This function tries to deactivate a timer. On success the timer is not
+ * queued and the timer callback function is not running on any CPU.
+ *
+ * This function does not guarantee that the timer cannot be rearmed right
+ * after dropping the base lock. That needs to be prevented by the calling
+ * code if necessary.
+ *
+ * Return:
+ * * %0  - The timer was not pending
+ * * %1  - The timer was pending and deactivated
+ * * %-1 - The timer callback function is running on a different CPU
+ */
+int try_to_del_timer_sync(struct timer_list *timer)
+{
+	return __try_to_del_timer_sync(timer);
+}
  EXPORT_SYMBOL(try_to_del_timer_sync);
  

Its a bit odd to me that some patches refactor and replace functions 
with new variants all under timer_* namespace, but then we've left some 
of them available without that.

Any reasoning behind this? I guess "try_*" is pretty clear and unlikely 
to get stolen by other code..?

Thanks,
Jake