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-rw-r--r--arch/s390/Kconfig1
-rw-r--r--arch/s390/include/asm/preempt.h22
2 files changed, 19 insertions, 4 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index b7e1eec7903e..da77f876ce5b 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -219,6 +219,7 @@ config S390
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
+ select HAVE_PREEMPT_DYNAMIC_KEY
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE
select HAVE_RETHOOK
diff --git a/arch/s390/include/asm/preempt.h b/arch/s390/include/asm/preempt.h
index 0cde7e240373..2c29bdf12127 100644
--- a/arch/s390/include/asm/preempt.h
+++ b/arch/s390/include/asm/preempt.h
@@ -130,10 +130,24 @@ static __always_inline bool should_resched(int preempt_offset)
#define init_idle_preempt_count(p, cpu) do { } while (0)
#ifdef CONFIG_PREEMPTION
-extern void preempt_schedule(void);
-#define __preempt_schedule() preempt_schedule()
-extern void preempt_schedule_notrace(void);
-#define __preempt_schedule_notrace() preempt_schedule_notrace()
+
+void preempt_schedule(void);
+void preempt_schedule_notrace(void);
+
+#ifdef CONFIG_PREEMPT_DYNAMIC
+
+void dynamic_preempt_schedule(void);
+void dynamic_preempt_schedule_notrace(void);
+#define __preempt_schedule() dynamic_preempt_schedule()
+#define __preempt_schedule_notrace() dynamic_preempt_schedule_notrace()
+
+#else /* CONFIG_PREEMPT_DYNAMIC */
+
+#define __preempt_schedule() preempt_schedule()
+#define __preempt_schedule_notrace() preempt_schedule_notrace()
+
+#endif /* CONFIG_PREEMPT_DYNAMIC */
+
#endif /* CONFIG_PREEMPTION */
#endif /* __ASM_PREEMPT_H */