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>

diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index da2c2f4f7642dfcdfbf7cb9875e5b85b6dd2d7cb..4e64b5cd1558762016ef166b1a73022f9ccfc084 100644 (file)
--- a/arch/s390/include/asm/unistd.h
+++ b/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

diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 5f7928fe34ce9e73067a5ceeaa15842fdf1c3480..3afba804fe97e9e9eb19ee9f2040cf3466f23361 100644 (file)
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/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

diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 539f0a7701e479322ce632a5a658636e3e103763..48174850f3b0859f05b2b5023f09cdbb827c9d56 100644 (file)
--- a/arch/s390/kernel/syscalls.S
+++ b/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)