From 367faf0feaca2b7377100db244a932ee305d9e94 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 13 Sep 2012 15:55:38 +0200 Subject: [PATCH] s390/syscalls: wire up kcmp system call Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/unistd.h | 4 +++- arch/s390/kernel/compat_wrapper.S | 8 ++++++++ arch/s390/kernel/syscalls.S | 2 ++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 6756e78f4808..21dffcbd3286 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -277,7 +277,9 @@ #define __NR_setns 339 #define __NR_process_vm_readv 340 #define __NR_process_vm_writev 341 -#define NR_syscalls 342 +/* Number 342 is reserved for sys_s390_runtime_instr */ +#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 2d82cfcbce5b..1b0323477ddf 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1646,3 +1646,11 @@ ENTRY(compat_sys_process_vm_writev_wrapper) llgf %r0,164(%r15) # unsigned long stg %r0,160(%r15) jg compat_sys_process_vm_writev + +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 bcab2f04ba58..a91b4061f7e1 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -350,3 +350,5 @@ SYSCALL(sys_syncfs,sys_syncfs,sys_syncfs_wrapper) 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) +NI_SYSCALL /* 342 sys_s390_runtime_instr */ +SYSCALL(sys_kcmp,sys_kcmp,sys_kcmp_wrapper) -- 2.39.5