s390 specific system call wrappers

[karo-tx-linux.git] / arch / s390 / kernel / process.c

diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 3e2c05cb6a8733683c57d2935536ee936cc52059..7ccd9749d586ada891efcb59468ee433fe25e956 100644 (file)
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -38,6 +38,7 @@
 #include <linux/utsname.h>
 #include <linux/tick.h>
 #include <linux/elfcore.h>
+#include <linux/syscalls.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
@@ -136,9 +137,12 @@ static void default_idle(void)
                return;
        }
        trace_hardirqs_on();
+       /* Don't trace preempt off for idle. */
+       stop_critical_timings();
        /* Wait for external, I/O or machine check interrupt. */
        __load_psw_mask(psw_kernel_bits | PSW_MASK_WAIT |
                        PSW_MASK_IO | PSW_MASK_EXT);
+       start_critical_timings();
 }
 
 void cpu_idle(void)
@@ -257,13 +261,13 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long new_stackp,
         return 0;
 }
 
-asmlinkage long sys_fork(void)
+SYSCALL_DEFINE0(fork)
 {
        struct pt_regs *regs = task_pt_regs(current);
        return do_fork(SIGCHLD, regs->gprs[15], regs, 0, NULL, NULL);
 }
 
-asmlinkage long sys_clone(void)
+SYSCALL_DEFINE0(clone)
 {
        struct pt_regs *regs = task_pt_regs(current);
        unsigned long clone_flags;
@@ -290,7 +294,7 @@ asmlinkage long sys_clone(void)
  * do not have enough call-clobbered registers to hold all
  * the information you need.
  */
-asmlinkage long sys_vfork(void)
+SYSCALL_DEFINE0(vfork)
 {
        struct pt_regs *regs = task_pt_regs(current);
        return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
@@ -310,7 +314,7 @@ asmlinkage void execve_tail(void)
 /*
  * sys_execve() executes a new program.
  */
-asmlinkage long sys_execve(void)
+SYSCALL_DEFINE0(execve)
 {
        struct pt_regs *regs = task_pt_regs(current);
        char *filename;