Hello dear all!
Suppose, we have the following pseudo code:
spin_lock(&some_lock);
some_func();
spin_unlock(&some_lock);
some_fun()
{
.....
wake_up_interruptibe_sync(&wait_queue);
....
}
Is this correct behavior or not?
This is a call chain:
wake_up_interruptible_sync ---> wake_up_sync ---> wake_up_common(...,
sync=1, ...) ---> ... ---> try_to_wake_up(..., sync=1)
try_to_wake_up invokes resched_task().
As a result, we invoke one thread, while other holds the lock.
Tell me please, my assumption is correct?
--
Regards,
Denis
