[PATCH 66] introduce syscall_code(context) helper

[Oleg Nesterov]

Trivial, move the annoying PTRACE_O_TRACESYSGOOD check into the new helper,
syscall_code().

---

 kernel/ptrace.c |   18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

--- PU/kernel/ptrace.c~66_SYSGOOD_HELPER        2009-10-06 00:50:01.000000000 
+0200
+++ PU/kernel/ptrace.c  2009-10-06 01:11:40.000000000 +0200
@@ -207,6 +207,12 @@ static u32 ptrace_report_clone(enum utra
        return ret;
 }
 
+static inline int syscall_code(struct ptrace_context *context)
+{
+       return  (context->options & PTRACE_O_TRACESYSGOOD) ?
+               (SIGTRAP | 0x80) : SIGTRAP;
+}
+
 static u32 ptrace_report_syscall_entry(u32 action,
                                       struct utrace_engine *engine,
                                       struct task_struct *task,
@@ -217,8 +223,8 @@ static u32 ptrace_report_syscall_entry(u
        WARN_ON(ev_pending(context));
 
        context->ev_name = PTRACE_EVENT_SYSCALL_ENTRY;
-       context->ev_code = (context->options & PTRACE_O_TRACESYSGOOD) ?
-                               (SIGTRAP | 0x80) : SIGTRAP;
+       context->ev_code = syscall_code(context);
+
        return UTRACE_SYSCALL_RUN | UTRACE_STOP;
 }
 
@@ -233,8 +239,8 @@ static u32 ptrace_report_syscall_exit(en
                return UTRACE_STOP;
 
        context->ev_name = PTRACE_EVENT_SYSCALL_EXIT;
-       context->ev_code = (context->options & PTRACE_O_TRACESYSGOOD) ?
-                               (SIGTRAP | 0x80) : SIGTRAP;
+       context->ev_code = syscall_code(context);
+
        return UTRACE_STOP;
 }
 
@@ -931,8 +937,8 @@ static void do_ptrace_resume(struct utra
                case PTRACE_EVENT_CLONE:
                case PTRACE_EVENT_VFORK_DONE:
                        context->ev_name = PTRACE_EVENT_SYSCALL_EXIT;
-                       context->ev_code = (context->options & 
PTRACE_O_TRACESYSGOOD) ?
-                                               (SIGTRAP | 0x80) : SIGTRAP;
+                       context->ev_code = syscall_code(context);
+
                        do_ptrace_notify_stop(context, tracee);
                        return;
                }