schedule(): schedule a sleeping processes if it has pending signals

2016-07-27 16:15:37 +09:00
parent 57690479bd
commit c484f766fa
4 changed files with 4 additions and 5 deletions
--- a/kernel/process.c
+++ b/kernel/process.c
@@ -2593,9 +2593,10 @@ redo:
 	if (v->flags & CPU_FLAG_NEED_MIGRATE) {
 		next = &cpu_local_var(idle);
 	} else {
-		/* Pick a new running process */
+		/* Pick a new running process or one that has a pending signal */
 		list_for_each_entry_safe(thread, tmp, &(v->runq), sched_list) {
-			if (thread->status == PS_RUNNING) {
+			if (thread->status == PS_RUNNING ||
+				(thread->status == PS_INTERRUPTIBLE && hassigpending(thread))) {
 				next = thread;
 				break;
 			}