Signed-off-by: Joe Perches <joe@perches.com>
---
include/asm-x86/semaphore_64.h | 98 +++++++++++++++++++---------------------
1 files changed, 47 insertions(+), 51 deletions(-)
diff --git a/include/asm-x86/semaphore_64.h b/include/asm-x86/semaphore_64.h
index 7969430..5835d8e 100644
--- a/include/asm-x86/semaphore_64.h
+++ b/include/asm-x86/semaphore_64.h
@@ -57,11 +57,11 @@ struct semaphore {
}
#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
- struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
+ struct semaphore name = __SEMAPHORE_INITIALIZER(name, count)
-#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
+#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name, 1)
-static inline void sema_init (struct semaphore *sem, int val)
+static inline void sema_init(struct semaphore *sem, int val)
{
/*
* *sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val);
@@ -74,12 +74,12 @@ static inline void sema_init (struct semaphore *sem, int val)
init_waitqueue_head(&sem->wait);
}
-static inline void init_MUTEX (struct semaphore *sem)
+static inline void init_MUTEX(struct semaphore *sem)
{
sema_init(sem, 1);
}
-static inline void init_MUTEX_LOCKED (struct semaphore *sem)
+static inline void init_MUTEX_LOCKED(struct semaphore *sem)
{
sema_init(sem, 0);
}
@@ -89,51 +89,49 @@ asmlinkage int __down_failed_interruptible(void /* params in registers */);
asmlinkage int __down_failed_trylock(void /* params in registers */);
asmlinkage void __up_wakeup(void /* special register calling convention */);
-asmlinkage void __down(struct semaphore * sem);
-asmlinkage int __down_interruptible(struct semaphore * sem);
-asmlinkage int __down_trylock(struct semaphore * sem);
-asmlinkage void __up(struct semaphore * sem);
+asmlinkage void __down(struct semaphore *sem);
+asmlinkage int __down_interruptible(struct semaphore *sem);
+asmlinkage int __down_trylock(struct semaphore *sem);
+asmlinkage void __up(struct semaphore *sem);
/*
* This is ugly, but we want the default case to fall through.
* "__down_failed" is a special asm handler that calls the C
* routine that actually waits. See arch/x86_64/kernel/semaphore.c
*/
-static inline void down(struct semaphore * sem)
+static inline void down(struct semaphore *sem)
{
might_sleep();
- __asm__ __volatile__(
- "# atomic down operation\n\t"
- LOCK_PREFIX "decl %0\n\t" /* --sem->count */
- "jns 1f\n\t"
- "call __down_failed\n"
- "1:"
- :"=m" (sem->count)
- :"D" (sem)
- :"memory");
+ asm volatile("# atomic down operation\n\t"
+ LOCK_PREFIX "decl %0\n\t" /* --sem->count */
+ "jns 1f\n\t"
+ "call __down_failed\n"
+ "1:"
+ : "=m" (sem->count)
+ : "D" (sem)
+ : "memory");
}
/*
* Interruptible try to acquire a semaphore. If we obtained
* it, return zero. If we were interrupted, returns -EINTR
*/
-static inline int down_interruptible(struct semaphore * sem)
+static inline int down_interruptible(struct semaphore *sem)
{
int result;
might_sleep();
- __asm__ __volatile__(
- "# atomic interruptible down operation\n\t"
- "xorl %0,%0\n\t"
- LOCK_PREFIX "decl %1\n\t" /* --sem->count */
- "jns 2f\n\t"
- "call __down_failed_interruptible\n"
- "2:\n"
- :"=&a" (result), "=m" (sem->count)
- :"D" (sem)
- :"memory");
+ asm volatile("# atomic interruptible down operation\n\t"
+ "xorl %0,%0\n\t"
+ LOCK_PREFIX "decl %1\n\t" /* --sem->count */
+ "jns 2f\n\t"
+ "call __down_failed_interruptible\n"
+ "2:\n"
+ : "=&a" (result), "=m" (sem->count)
+ : "D" (sem)
+ : "memory");
return result;
}
@@ -141,20 +139,19 @@ static inline int down_interruptible(struct semaphore * sem)
* Non-blockingly attempt to down() a semaphore.
* Returns zero if we acquired it
*/
-static inline int down_trylock(struct semaphore * sem)
+static inline int down_trylock(struct semaphore *sem)
{
int result;
- __asm__ __volatile__(
- "# atomic interruptible down operation\n\t"
- "xorl %0,%0\n\t"
- LOCK_PREFIX "decl %1\n\t" /* --sem->count */
- "jns 2f\n\t"
- "call __down_failed_trylock\n\t"
- "2:\n"
- :"=&a" (result), "=m" (sem->count)
- :"D" (sem)
- :"memory","cc");
+ asm volatile("# atomic interruptible down operation\n\t"
+ "xorl %0,%0\n\t"
+ LOCK_PREFIX "decl %1\n\t" /* --sem->count */
+ "jns 2f\n\t"
+ "call __down_failed_trylock\n\t"
+ "2:\n"
+ : "=&a" (result), "=m" (sem->count)
+ : "D" (sem)
+ : "memory", "cc");
return result;
}
@@ -164,17 +161,16 @@ static inline int down_trylock(struct semaphore * sem)
* The default case (no contention) will result in NO
* jumps for both down() and up().
*/
-static inline void up(struct semaphore * sem)
+static inline void up(struct semaphore *sem)
{
- __asm__ __volatile__(
- "# atomic up operation\n\t"
- LOCK_PREFIX "incl %0\n\t" /* ++sem->count */
- "jg 1f\n\t"
- "call __up_wakeup\n"
- "1:"
- :"=m" (sem->count)
- :"D" (sem)
- :"memory");
+ asm volatile("# atomic up operation\n\t"
+ LOCK_PREFIX "incl %0\n\t" /* ++sem->count */
+ "jg 1f\n\t"
+ "call __up_wakeup\n"
+ "1:"
+ : "=m" (sem->count)
+ : "D" (sem)
+ : "memory");
}
#endif /* __KERNEL__ */
#endif
--
1.5.4.rc2
--
