s390/syscalls: wire up kcmp system call

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/unistd.h

@@ -278,7 +278,8 @@
 #define __NR_process_vm_readv	340
 #define __NR_process_vm_writev	341
 #define __NR_s390_runtime_instr 342
-#define NR_syscalls 343
+#define __NR_kcmp		343
+#define NR_syscalls 344
 
 /* 
  * There are some system calls that are not present on 64 bit, some

arch/s390/kernel/compat_wrapper.S

@@ -1651,3 +1651,11 @@ ENTRY(sys_s390_runtime_instr_wrapper)
 	lgfr	%r2,%r2			# int
 	lgfr	%r3,%r3			# int
 	jg	sys_s390_runtime_instr
+
+ENTRY(sys_kcmp_wrapper)
+	lgfr	%r2,%r2			# pid_t
+	lgfr	%r3,%r3			# pid_t
+	lgfr	%r4,%r4			# int
+	llgfr	%r5,%r5			# unsigned long
+	llgfr	%r6,%r6			# unsigned long
+	jg	sys_kcmp

arch/s390/kernel/syscalls.S

@@ -351,3 +351,4 @@ SYSCALL(sys_setns,sys_setns,sys_setns_wrapper)
 SYSCALL(sys_process_vm_readv,sys_process_vm_readv,compat_sys_process_vm_readv_wrapper) /* 340 */
 SYSCALL(sys_process_vm_writev,sys_process_vm_writev,compat_sys_process_vm_writev_wrapper)
 SYSCALL(sys_ni_syscall,sys_s390_runtime_instr,sys_s390_runtime_instr_wrapper)
+SYSCALL(sys_kcmp,sys_kcmp,sys_kcmp_wrapper)