diff options
Diffstat (limited to 'arch/s390/kernel/ptrace.c')
| -rw-r--r-- | arch/s390/kernel/ptrace.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 1d81bf9488ae..6e036bae9875 100644 --- 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; |