From 1c182a628075af7431edb8155601740867b5ae51 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Tue, 3 Dec 2013 11:09:10 +0100 Subject: [PATCH] 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 --- arch/s390/kernel/ptrace.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index e65c91c591e8..c369a26d1d56 100644 --- 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); } /* -- 2.11.0