[S390] wire up sys_open_by_handle_at

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

3 files changed, 10 insertions, 1 deletions

diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index 80f27c9f7202..65f11efdd94c 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -273,7 +273,8 @@
 #define __NR_fanotify_mark      333
 #define __NR_prlimit64          334
 #define __NR_name_to_handle_at  335
-#define NR_syscalls 336
+#define __NR_open_by_handle_at  336
+#define NR_syscalls 337
 
 /* 
  * 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 364ed14406bb..03918128bb45 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1886,3 +1886,10 @@ sys_name_to_handle_at_wrapper:
         llgtr   %r5,%r5                 # int __user *
         lgfr    %r6,%r6                 # int
         jg      sys_name_to_handle_at
+
+        .globl  compat_sys_open_by_handle_at_wrapper
+compat_sys_open_by_handle_at_wrapper:
+        lgfr    %r2,%r2                 # int
+        llgtr   %r3,%r3                 # struct file_handle __user *
+        lgfr    %r4,%r4                 # int
+        jg      compat_sys_open_by_handle_at
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 1230c6e75a84..958744cdcaba 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -344,3 +344,4 @@ SYSCALL(sys_fanotify_init,sys_fanotify_init,sys_fanotify_init_wrapper)
 SYSCALL(sys_fanotify_mark,sys_fanotify_mark,sys_fanotify_mark_wrapper)
 SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper)
 SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */
+SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper)