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-rw-r--r--kernel/sched/core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index df6a34d27d2b..5c47d70f4204 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7450,11 +7450,13 @@ int preempt_dynamic_mode = preempt_dynamic_undefined;
int sched_dynamic_mode(const char *str)
{
+#ifndef CONFIG_PREEMPT_RT
if (!strcmp(str, "none"))
return preempt_dynamic_none;
if (!strcmp(str, "voluntary"))
return preempt_dynamic_voluntary;
+#endif
if (!strcmp(str, "full"))
return preempt_dynamic_full;