Generic semaphore implementation

[sfrench/cifs-2.6.git] / include / asm-h8300 / semaphore-helper.h

diff --git a/include/asm-h8300/semaphore-helper.h b/include/asm-h8300/semaphore-helper.h
deleted file mode 100644 (file)
index 4fea36b..0000000
--- a/include/asm-h8300/semaphore-helper.h
+++ /dev/null
@@ -1,85 +0,0 @@
-#ifndef _H8300_SEMAPHORE_HELPER_H
-#define _H8300_SEMAPHORE_HELPER_H
-
-/*
- * SMP- and interrupt-safe semaphores helper functions.
- *
- * (C) Copyright 1996 Linus Torvalds
- *
- * based on
- * m68k version by Andreas Schwab
- */
-
-#include <linux/errno.h>
-
-/*
- * These two _must_ execute atomically wrt each other.
- */
-static inline void wake_one_more(struct semaphore * sem)
-{
-       atomic_inc((atomic_t *)&sem->sleepers);
-}
-
-static inline int waking_non_zero(struct semaphore *sem)
-{
-       int ret;
-       unsigned long flags;
-
-       spin_lock_irqsave(&semaphore_wake_lock, flags);
-       ret = 0;
-       if (sem->sleepers > 0) {
-               sem->sleepers--;
-               ret = 1;
-       }
-       spin_unlock_irqrestore(&semaphore_wake_lock, flags);
-       return ret;
-}
-
-/*
- * waking_non_zero_interruptible:
- *     1       got the lock
- *     0       go to sleep
- *     -EINTR  interrupted
- */
-static inline int waking_non_zero_interruptible(struct semaphore *sem,
-                                               struct task_struct *tsk)
-{
-       int ret;
-       unsigned long flags;
-
-       spin_lock_irqsave(&semaphore_wake_lock, flags);
-       ret = 0;
-       if (sem->sleepers > 0) {
-               sem->sleepers--;
-               ret = 1;
-       } else if (signal_pending(tsk)) {
-               atomic_inc(&sem->count);
-               ret = -EINTR;
-       }
-       spin_unlock_irqrestore(&semaphore_wake_lock, flags);
-       return ret;
-}
-
-/*
- * waking_non_zero_trylock:
- *     1       failed to lock
- *     0       got the lock
- */
-static inline int waking_non_zero_trylock(struct semaphore *sem)
-{
-       int ret;
-       unsigned long flags;
-
-       spin_lock_irqsave(&semaphore_wake_lock, flags);
-       ret = 1;
-       if (sem->sleepers <= 0)
-               atomic_inc(&sem->count);
-       else {
-               sem->sleepers--;
-               ret = 0;
-       }
-       spin_unlock_irqrestore(&semaphore_wake_lock, flags);
-       return ret;
-}
-
-#endif