include/asm-s390x/current.h

   1 /*
   2  *  include/asm-s390/current.h
   3  *
   4  *  S390 version
   5  *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
   6  *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
   7  *
   8  *  Derived from "include/asm-i386/current.h"
   9  */
  10
  11 #ifndef _S390_CURRENT_H
  12 #define _S390_CURRENT_H
  13
  14 #ifdef __KERNEL__
  15
  16 struct task_struct;
  17
  18 static inline struct task_struct * get_current(void)
  19 {
  20         struct task_struct *current;
  21         __asm__("lghi  %0,-16384\n\t"
  22                 "alg   %0,0xd40"
  23                 : "=&r" (current) : : "cc" );
  24         return current;
  25  }
  26
  27 #define current get_current()
  28
  29 #endif
  30
  31 #endif /* !(_S390_CURRENT_H) */