sched, futex: detach sched.h and futex.h

[safe/jmp/linux-2.6] / include / linux / smp_lock.h

diff --git a/include/linux/smp_lock.h b/include/linux/smp_lock.h
index fa1ff3b..aab3a4c 100644 (file)
--- a/include/linux/smp_lock.h
+++ b/include/linux/smp_lock.h
@@ -1,10 +1,8 @@
 #ifndef __LINUX_SMPLOCK_H
 #define __LINUX_SMPLOCK_H
 
-#include <linux/config.h>
 #ifdef CONFIG_LOCK_KERNEL
 #include <linux/sched.h>
-#include <linux/spinlock.h>
 
 #define kernel_locked()                (current->lock_depth >= 0)
 
@@ -19,22 +17,10 @@ extern void __lockfunc __release_kernel_lock(void);
                __release_kernel_lock();        \
 } while (0)
 
-/*
- * Non-SMP kernels will never block on the kernel lock,
- * so we are better off returning a constant zero from
- * reacquire_kernel_lock() so that the compiler can see
- * it at compile-time.
- */
-#if defined(CONFIG_SMP) && !defined(CONFIG_PREEMPT_BKL)
-# define return_value_on_smp return
-#else
-# define return_value_on_smp
-#endif
-
 static inline int reacquire_kernel_lock(struct task_struct *task)
 {
        if (unlikely(task->lock_depth >= 0))
-               return_value_on_smp __reacquire_kernel_lock();
+               return __reacquire_kernel_lock();
        return 0;
 }