s390/ptrace: simplify enable/disable single step

The user_enable_single_step() and user_disable_sindle_step() functions are always called on the inferior, never for the currently active process. Remove the unnecessary check for the current process and the update_cr_regs() call from the enable/disable functions. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
mariux64 · Dec 16, 2013 · 1c182a6 · 1c182a6
1 parent dea2419
commit 1c182a6
Showing 1 changed file with 0 additions and 4 deletions.
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
@@ -107,15 +107,11 @@ void update_cr_regs(struct task_struct *task)
 void user_enable_single_step(struct task_struct *task)
 {
 	set_tsk_thread_flag(task, TIF_SINGLE_STEP);
-	if (task == current)
-		update_cr_regs(task);
 }
 
 void user_disable_single_step(struct task_struct *task)
 {
 	clear_tsk_thread_flag(task, TIF_SINGLE_STEP);
-	if (task == current)
-		update_cr_regs(task);
 }
 
 /*