[PATCH] Don't use lock section for mutexes and semaphores

[linux-2.6] / include / asm-x86_64 / semaphore.h

diff --git a/include/asm-x86_64/semaphore.h b/include/asm-x86_64/semaphore.h
index a389aa6fe80f9207b49d4992ebf31f5303310e42..107bd90429e86e14e47185895d9ab222be3b0652 100644 (file)
--- a/include/asm-x86_64/semaphore.h
+++ b/include/asm-x86_64/semaphore.h
@@ -106,13 +106,10 @@ static inline void down(struct semaphore * sem)
 
        __asm__ __volatile__(
                "# atomic down operation\n\t"
-               LOCK "decl %0\n\t"     /* --sem->count */
-               "js 2f\n"
-               "1:\n"
-               LOCK_SECTION_START("")
-               "2:\tcall __down_failed\n\t"
-               "jmp 1b\n"
-               LOCK_SECTION_END
+               LOCK_PREFIX "decl %0\n\t"     /* --sem->count */
+               "jns 1f\n\t"
+               "call __down_failed\n"
+               "1:"
                :"=m" (sem->count)
                :"D" (sem)
                :"memory");
@@ -130,14 +127,11 @@ static inline int down_interruptible(struct semaphore * sem)
 
        __asm__ __volatile__(
                "# atomic interruptible down operation\n\t"
-               LOCK "decl %1\n\t"     /* --sem->count */
-               "js 2f\n\t"
-               "xorl %0,%0\n"
-               "1:\n"
-               LOCK_SECTION_START("")
-               "2:\tcall __down_failed_interruptible\n\t"
-               "jmp 1b\n"
-               LOCK_SECTION_END
+               "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");
@@ -154,14 +148,11 @@ static inline int down_trylock(struct semaphore * sem)
 
        __asm__ __volatile__(
                "# atomic interruptible down operation\n\t"
-               LOCK "decl %1\n\t"     /* --sem->count */
-               "js 2f\n\t"
-               "xorl %0,%0\n"
-               "1:\n"
-               LOCK_SECTION_START("")
-               "2:\tcall __down_failed_trylock\n\t"
-               "jmp 1b\n"
-               LOCK_SECTION_END
+               "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");
@@ -178,13 +169,10 @@ static inline void up(struct semaphore * sem)
 {
        __asm__ __volatile__(
                "# atomic up operation\n\t"
-               LOCK "incl %0\n\t"     /* ++sem->count */
-               "jle 2f\n"
-               "1:\n"
-               LOCK_SECTION_START("")
-               "2:\tcall __up_wakeup\n\t"
-               "jmp 1b\n"
-               LOCK_SECTION_END
+               LOCK_PREFIX "incl %0\n\t"     /* ++sem->count */
+               "jg 1f\n\t"
+               "call __up_wakeup\n"
+               "1:"
                :"=m" (sem->count)
                :"D" (sem)
                :"memory");