9os

commit f7cf4871113d42a46fccb1f3918e59026645f54f
parent 55b189e00e58679678b71b641d93b7c47d518c68
Author: Roberto E. Vargas Caballero <roberto.vargas@midokura.com>
Date:   Fri, 18 Nov 2022 15:19:26 +0100

os9: Return in sched with preemption locked

If we are running we don't have to restore any context
because the execution is expected to be resumed after
sched().

Diffstat:
M
src/os9/proc.c
 | 
2
+-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/os9/proc.c b/src/os9/proc.c
@@ -521,7 +521,7 @@ sched(void)
 
 	if (proc->state == TRUNNING) {
 		if (proc->flags&TLOCK_PREEMP)
-			swtch(&proc->ctx);
+			return;
 		proc->state = TREADY;
 	}
 	unlock(&proc->m);