1 files changed, 37 insertions, 0 deletions
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
new file mode 100644
index 00000000000..aabc8a13ba7
--- /dev/null
+++ b/include/linux/kthread.h
@@ -0,0 +1,37 @@
+#ifndef _LINUX_KTHREAD_H
+#define _LINUX_KTHREAD_H
+/* Simple interface for creating and stopping kernel threads without mess. */
+#include <linux/err.h>
+#include <linux/sched.h>
+
+struct task_struct *kthread_create(int (*threadfn)(void *data),
+				   void *data,
+				   const char namefmt[], ...)
+	__attribute__((format(printf, 3, 4)));
+
+/**
+ * kthread_run - create and wake a thread.
+ * @threadfn: the function to run until signal_pending(current).
+ * @data: data ptr for @threadfn.
+ * @namefmt: printf-style name for the thread.
+ *
+ * Description: Convenient wrapper for kthread_create() followed by
+ * wake_up_process().  Returns the kthread or ERR_PTR(-ENOMEM).
+ */
+#define kthread_run(threadfn, data, namefmt, ...)			   \
+({									   \
+	struct task_struct *__k						   \
+		= kthread_create(threadfn, data, namefmt, ## __VA_ARGS__); \
+	if (!IS_ERR(__k))						   \
+		wake_up_process(__k);					   \
+	__k;								   \
+})
+
+void kthread_bind(struct task_struct *k, unsigned int cpu);
+int kthread_stop(struct task_struct *k);
+int kthread_should_stop(void);
+
+int kthreadd(void *unused);
+extern struct task_struct *kthreadd_task;
+
+#endif /* _LINUX_KTHREAD_H */