[PATCH] remove kernel/kthread.c:kthread_stop_sem()

Remove the now-unneeded kthread_stop_sem().

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 7cce5df..1c65e7a 100644 (file)
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -28,7 +28,6 @@ struct task_struct *kthread_create(int (*threadfn)(void *data),
 
 void kthread_bind(struct task_struct *k, unsigned int cpu);
 int kthread_stop(struct task_struct *k);
-int kthread_stop_sem(struct task_struct *k, struct semaphore *s);
 int kthread_should_stop(void);
 
 #endif /* _LINUX_KTHREAD_H */

diff --git a/kernel/kthread.c b/kernel/kthread.c
index 24be714..4f9c60e 100644 (file)
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -216,23 +216,6 @@ EXPORT_SYMBOL(kthread_bind);
  */
 int kthread_stop(struct task_struct *k)
 {
-       return kthread_stop_sem(k, NULL);
-}
-EXPORT_SYMBOL(kthread_stop);
-
-/**
- * kthread_stop_sem - stop a thread created by kthread_create().
- * @k: thread created by kthread_create().
- * @s: semaphore that @k waits on while idle.
- *
- * Does essentially the same thing as kthread_stop() above, but wakes
- * @k by calling up(@s).
- *
- * Returns the result of threadfn(), or %-EINTR if wake_up_process()
- * was never called.
- */
-int kthread_stop_sem(struct task_struct *k, struct semaphore *s)
-{
        int ret;
 
        mutex_lock(&kthread_stop_lock);
@@ -246,10 +229,7 @@ int kthread_stop_sem(struct task_struct *k, struct semaphore *s)
 
        /* Now set kthread_should_stop() to true, and wake it up. */
        kthread_stop_info.k = k;
-       if (s)
-               up(s);
-       else
-               wake_up_process(k);
+       wake_up_process(k);
        put_task_struct(k);
 
        /* 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)
 
        return ret;
 }
-EXPORT_SYMBOL(kthread_stop_sem);
+EXPORT_SYMBOL(kthread_stop);
 
 static __init int helper_init(void)
 {