Merge branch 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied...

[linux-drm-fsl-dcu.git] / arch / arm / kernel / ptrace.c

diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 9254ba2f46fc147b756407d6d21fdff16a117f84..13af4006a40fa3a0022a5331a39111769e99b6f1 100644 (file)
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -457,13 +457,10 @@ void ptrace_cancel_bpt(struct task_struct *child)
 
 /*
  * Called by kernel/ptrace.c when detaching..
- *
- * Make sure the single step bit is not set.
  */
 void ptrace_disable(struct task_struct *child)
 {
-       child->ptrace &= ~PT_SINGLESTEP;
-       ptrace_cancel_bpt(child);
+       single_step_disable(child);
 }
 
 /*
@@ -712,9 +709,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                        else
                                clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
                        child->exit_code = data;
-                       /* make sure single-step breakpoint is gone. */
-                       child->ptrace &= ~PT_SINGLESTEP;
-                       ptrace_cancel_bpt(child);
+                       single_step_disable(child);
                        wake_up_process(child);
                        ret = 0;
                        break;
@@ -725,9 +720,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 * exit.
                 */
                case PTRACE_KILL:
-                       /* make sure single-step breakpoint is gone. */
-                       child->ptrace &= ~PT_SINGLESTEP;
-                       ptrace_cancel_bpt(child);
+                       single_step_disable(child);
                        if (child->exit_state != EXIT_ZOMBIE) {
                                child->exit_code = SIGKILL;
                                wake_up_process(child);
@@ -742,7 +735,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                        ret = -EIO;
                        if (!valid_signal(data))
                                break;
-                       child->ptrace |= PT_SINGLESTEP;
+                       single_step_enable(child);
                        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
                        child->exit_code = data;
                        /* give it a chance to run. */
@@ -786,8 +779,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                        break;
 
                case PTRACE_SET_SYSCALL:
+                       task_thread_info(child)->syscall = data;
                        ret = 0;
-                       child->ptrace_message = data;
                        break;
 
 #ifdef CONFIG_CRUNCH
@@ -824,7 +817,7 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
        ip = regs->ARM_ip;
        regs->ARM_ip = why;
 
-       current->ptrace_message = scno;
+       current_thread_info()->syscall = scno;
 
        /* the 0x80 provides a way for the tracing parent to distinguish
           between a syscall stop and SIGTRAP delivery */
@@ -841,5 +834,5 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
        }
        regs->ARM_ip = ip;
 
-       return current->ptrace_message;
+       return current_thread_info()->syscall;
 }