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-rw-r--r--include/linux/preempt.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 29db25f50861..363e5e277a3b 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -108,6 +108,14 @@ do { \
#endif /* CONFIG_PREEMPT_COUNT */
+#ifdef CONFIG_SMP
+extern void migrate_disable(void);
+extern void migrate_enable(void);
+#else
+# define migrate_disable() do { } while (0)
+# define migrate_enable() do { } while (0)
+#endif
+
#ifdef CONFIG_PREEMPT_RT_FULL
# define preempt_disable_rt() preempt_disable()
# define preempt_enable_rt() preempt_enable()