- struct pt_regs *regs = (void *)current->thread.rsp0 - sizeof(struct pt_regs);
- return (void *)regs->rsp - len;
+ return (u32)(unsigned long)uptr;
+}
+
+static __inline__ void __user *compat_alloc_user_space(long len)
+{
+ struct pt_regs *regs = task_pt_regs(current);
+ return (void __user *)regs->rsp - len;
+}
+
+static inline int is_compat_task(void)
+{
+ return current_thread_info()->status & TS_COMPAT;