1 #ifndef _LINUX_KTHREAD_H 2 #define _LINUX_KTHREAD_H 3 /* Simple interface for creating and stopping kernel threads without mess. */ 4 #include <linux/err.h> 5 #include <linux/sched.h> 6 7 struct task_struct *kthread_create(int (*threadfn)(void *data), 8 void *data, 9 const char namefmt[], ...); 10 11 /** 12 * kthread_run - create and wake a thread. 13 * @threadfn: the function to run until signal_pending(current). 14 * @data: data ptr for @threadfn. 15 * @namefmt: printf-style name for the thread. 16 * 17 * Description: Convenient wrapper for kthread_create() followed by 18 * wake_up_process(). Returns the kthread or ERR_PTR(-ENOMEM). 19 */ 20 #define kthread_run(threadfn, data, namefmt, ...) \ 21 ({ \ 22 struct task_struct *__k \ 23 = kthread_create(threadfn, data, namefmt, ## __VA_ARGS__); \ 24 if (!IS_ERR(__k)) \ 25 wake_up_process(__k); \ 26 __k; \ 27 }) 28 29 void kthread_bind(struct task_struct *k, unsigned int cpu); 30 int kthread_stop(struct task_struct *k); 31 int kthread_should_stop(void); 32 33 int kthreadd(void *unused); 34 extern struct task_struct *kthreadd_task; 35 36 #endif /* _LINUX_KTHREAD_H */ 37