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#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[], ...);

/**

 * 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 */