MINOR: tasks: Use a bitfield to track tasks activity per-thread
a bitfield has been added to know if there are runnable tasks for a thread. When
a task is woken up, the bits corresponding to its thread_mask are set. When all
tasks for a thread have been evaluated without any wakeup, the thread is removed
from active ones by unsetting its tid_bit from the bitfield.
diff --git a/include/proto/task.h b/include/proto/task.h
index 9461b59..7639ed7 100644
--- a/include/proto/task.h
+++ b/include/proto/task.h
@@ -83,6 +83,7 @@
/* a few exported variables */
extern unsigned int nb_tasks; /* total number of tasks */
+extern unsigned long active_tasks_mask; /* Mask of threads with active tasks */
extern unsigned int tasks_run_queue; /* run queue size */
extern unsigned int tasks_run_queue_cur;
extern unsigned int nb_tasks_cur;