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authorHeiko Carstens <heiko.carstens@de.ibm.com>2012-09-13 15:55:38 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-09-26 15:45:17 +0200
commitc0162b07b34ce8b33548f4b2658ec3133f960e71 (patch)
treed4b09e2dc52064c4683b2a2bc7b55be0e8a8bb48 /arch/s390
parentdabecb2933f7ae901c88cb10c71ab38ca7dfc38f (diff)
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>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/unistd.h3
-rw-r--r--arch/s390/kernel/compat_wrapper.S8
-rw-r--r--arch/s390/kernel/syscalls.S1
3 files changed, 11 insertions, 1 deletions
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index da2c2f4f7642..4e64b5cd1558 100644
--- 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 5f7928fe34ce..3afba804fe97 100644
--- 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 539f0a7701e4..48174850f3b0 100644
--- 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)