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-rw-r--r--include/linux/kthread.h1
-rw-r--r--kernel/kthread.c24
2 files changed, 2 insertions, 23 deletions
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 7cce5dfa092f..1c65e7a9f186 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -28,7 +28,6 @@ struct task_struct *kthread_create(int (*threadfn)(void *data),
28 28
29void kthread_bind(struct task_struct *k, unsigned int cpu); 29void kthread_bind(struct task_struct *k, unsigned int cpu);
30int kthread_stop(struct task_struct *k); 30int kthread_stop(struct task_struct *k);
31int kthread_stop_sem(struct task_struct *k, struct semaphore *s);
32int kthread_should_stop(void); 31int kthread_should_stop(void);
33 32
34#endif /* _LINUX_KTHREAD_H */ 33#endif /* _LINUX_KTHREAD_H */
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 24be714b04c7..4f9c60ef95e8 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -216,23 +216,6 @@ EXPORT_SYMBOL(kthread_bind);
216 */ 216 */
217int kthread_stop(struct task_struct *k) 217int kthread_stop(struct task_struct *k)
218{ 218{
219 return kthread_stop_sem(k, NULL);
220}
221EXPORT_SYMBOL(kthread_stop);
222
223/**
224 * kthread_stop_sem - stop a thread created by kthread_create().
225 * @k: thread created by kthread_create().
226 * @s: semaphore that @k waits on while idle.
227 *
228 * Does essentially the same thing as kthread_stop() above, but wakes
229 * @k by calling up(@s).
230 *
231 * Returns the result of threadfn(), or %-EINTR if wake_up_process()
232 * was never called.
233 */
234int kthread_stop_sem(struct task_struct *k, struct semaphore *s)
235{
236 int ret; 219 int ret;
237 220
238 mutex_lock(&kthread_stop_lock); 221 mutex_lock(&kthread_stop_lock);
@@ -246,10 +229,7 @@ int kthread_stop_sem(struct task_struct *k, struct semaphore *s)
246 229
247 /* Now set kthread_should_stop() to true, and wake it up. */ 230 /* Now set kthread_should_stop() to true, and wake it up. */
248 kthread_stop_info.k = k; 231 kthread_stop_info.k = k;
249 if (s) 232 wake_up_process(k);
250 up(s);
251 else
252 wake_up_process(k);
253 put_task_struct(k); 233 put_task_struct(k);
254 234
255 /* Once it dies, reset stop ptr, gather result and we're done. */ 235 /* Once it dies, reset stop ptr, gather result and we're done. */
@@ -260,7 +240,7 @@ int kthread_stop_sem(struct task_struct *k, struct semaphore *s)
260 240
261 return ret; 241 return ret;
262} 242}
263EXPORT_SYMBOL(kthread_stop_sem); 243EXPORT_SYMBOL(kthread_stop);
264 244
265static __init int helper_init(void) 245static __init int helper_init(void)
266{ 246{