x86: Merge kernel_thread()

[pandora-kernel.git] / arch / x86 / kernel / process_64.c

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index c95c8f4..1a362c5 100644 (file)
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -59,8 +59,6 @@ asmlinkage extern void ret_from_fork(void);
 DEFINE_PER_CPU(unsigned long, old_rsp);
 static DEFINE_PER_CPU(unsigned char, is_idle);
 
-unsigned long kernel_thread_flags = CLONE_VM | CLONE_UNTRACED;
-
 static ATOMIC_NOTIFIER_HEAD(idle_notifier);
 
 void idle_notifier_register(struct notifier_block *n)
@@ -285,8 +283,9 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
        *childregs = *regs;
 
        childregs->ax = 0;
-       childregs->sp = sp;
-       if (sp == ~0UL)
+       if (user_mode(regs))
+               childregs->sp = sp;
+       else
                childregs->sp = (unsigned long)childregs;
 
        p->thread.sp = (unsigned long) childregs;
@@ -520,25 +519,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
        return prev_p;
 }
 
-/*
- * sys_execve() executes a new program.
- */
-asmlinkage
-long sys_execve(char __user *name, char __user * __user *argv,
-               char __user * __user *envp, struct pt_regs *regs)
-{
-       long error;
-       char *filename;
-
-       filename = getname(name);
-       error = PTR_ERR(filename);
-       if (IS_ERR(filename))
-               return error;
-       error = do_execve(filename, argv, envp, regs);
-       putname(filename);
-       return error;
-}
-
 void set_personality_64bit(void)
 {
        /* inherit personality from parent */
@@ -553,15 +533,6 @@ void set_personality_64bit(void)
        current->personality &= ~READ_IMPLIES_EXEC;
 }
 
-asmlinkage long
-sys_clone(unsigned long clone_flags, unsigned long newsp,
-         void __user *parent_tid, void __user *child_tid, struct pt_regs *regs)
-{
-       if (!newsp)
-               newsp = regs->sp;
-       return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
-}
-
 unsigned long get_wchan(struct task_struct *p)
 {
        unsigned long stack;