- Update to 2.6.25-rc3.

[linux-flexiantxendom0-3.2.10.git] / arch / s390 / kernel / ptrace.c

diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 1d81bf9..6e036ba 100644 (file)
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -86,13 +86,13 @@ FixPerRegisters(struct task_struct *task)
                per_info->control_regs.bits.storage_alt_space_ctl = 0;
 }
 
-static void set_single_step(struct task_struct *task)
+void user_enable_single_step(struct task_struct *task)
 {
        task->thread.per_info.single_step = 1;
        FixPerRegisters(task);
 }
 
-static void clear_single_step(struct task_struct *task)
+void user_disable_single_step(struct task_struct *task)
 {
        task->thread.per_info.single_step = 0;
        FixPerRegisters(task);
@@ -107,7 +107,7 @@ void
 ptrace_disable(struct task_struct *child)
 {
        /* make sure the single step bit is not set. */
-       clear_single_step(child);
+       user_disable_single_step(child);
 }
 
 #ifndef CONFIG_64BIT
@@ -651,7 +651,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data)
                        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
                child->exit_code = data;
                /* make sure the single step bit is not set. */
-               clear_single_step(child);
+               user_disable_single_step(child);
                wake_up_process(child);
                return 0;
 
@@ -665,7 +665,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data)
                        return 0;
                child->exit_code = SIGKILL;
                /* make sure the single step bit is not set. */
-               clear_single_step(child);
+               user_disable_single_step(child);
                wake_up_process(child);
                return 0;
 
@@ -675,10 +675,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data)
                        return -EIO;
                clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
                child->exit_code = data;
-               if (data)
-                       set_tsk_thread_flag(child, TIF_SINGLE_STEP);
-               else
-                       set_single_step(child);
+               user_enable_single_step(child);
                /* give it a chance to run. */
                wake_up_process(child);
                return 0;