[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 c8ad350d14446efd397c05fb403d577380057716..f0f19e6ace6cf550253483a6eddee80b163326ca 100644 (file)
--- 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 87cf5a79a351c38e5dfed555fca336b3fe6e3575..fb38af6316bb84f26c5a7f169cc142ef687540e8 100644 (file)
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1805,3 +1805,21 @@ compat_sys_keyctl_wrapper:
        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 fe5b25a988abedaf6f79e6b6f532831d4fe6404a..2c7739fe70b10a632146cb73ec674def95175478 100644 (file)
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -336,3 +336,5 @@ SYSCALL(sys_inotify_init1,sys_inotify_init1,sys_inotify_init1_wrapper)
 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)