[S390] wire up preadv/pwritev system calls
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/asm/unistd.h b/arch/s390/include/asm/unistd.h
index c8ad350..f0f19e6 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -265,7 +265,9 @@
#define __NR_pipe2 325
#define __NR_dup3 326
#define __NR_epoll_create1 327
-#define NR_syscalls 328
+#define __NR_preadv 328
+#define __NR_pwritev 329
+#define NR_syscalls 330
/*
* There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 87cf5a7..fb38af6 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1805,3 +1805,21 @@
llgfr %r5,%r5 # u32
llgfr %r6,%r6 # u32
jg compat_sys_keyctl # branch to system call
+
+ .globl compat_sys_preadv_wrapper
+compat_sys_preadv_wrapper:
+ llgfr %r2,%r2 # unsigned long
+ llgtr %r3,%r3 # compat_iovec *
+ llgfr %r4,%r4 # unsigned long
+ llgfr %r5,%r5 # u32
+ llgfr %r6,%r6 # u32
+ jg compat_sys_preadv # branch to system call
+
+ .globl compat_sys_pwritev_wrapper
+compat_sys_pwritev_wrapper:
+ llgfr %r2,%r2 # unsigned long
+ llgtr %r3,%r3 # compat_iovec *
+ llgfr %r4,%r4 # unsigned long
+ llgfr %r5,%r5 # u32
+ llgfr %r6,%r6 # u32
+ jg compat_sys_pwritev # branch to system call
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index fe5b25a..2c7739f 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -336,3 +336,5 @@
SYSCALL(sys_pipe2,sys_pipe2,sys_pipe2_wrapper) /* 325 */
SYSCALL(sys_dup3,sys_dup3,sys_dup3_wrapper)
SYSCALL(sys_epoll_create1,sys_epoll_create1,sys_epoll_create1_wrapper)
+SYSCALL(sys_preadv,sys_preadv,compat_sys_preadv_wrapper)
+SYSCALL(sys_pwritev,sys_pwritev,compat_sys_pwritev_wrapper)