s390: wire up preadv2/pwritev2 syscalls

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index ab3aa68..4384bc7 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -311,7 +311,9 @@
 #define __NR_shutdown		373
 #define __NR_mlock2		374
 #define __NR_copy_file_range	375
-#define NR_syscalls 376
+#define __NR_preadv2		376
+#define __NR_pwritev2		377
+#define NR_syscalls 378
 
 /* 
  * There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 293d8b9..9b59e62 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -384,3 +384,5 @@
 SYSCALL(sys_shutdown,sys_shutdown)
 SYSCALL(sys_mlock2,compat_sys_mlock2)
 SYSCALL(sys_copy_file_range,compat_sys_copy_file_range) /* 375 */
+SYSCALL(sys_preadv2,compat_sys_preadv2)
+SYSCALL(sys_pwritev2,compat_sys_pwritev2)