Re: [PATCH x86/mm 06/11] x86 ptrace arch merge

[Andrew Morton]

On Thu, 29 Nov 2007 04:00:14 -0800 (PST) Roland McGrath <roland@xxxxxxxxxx> wrote:

> --- a/arch/x86/kernel/ptrace.c
> +++ b/arch/x86/kernel/ptrace.c
> @@ -461,12 +461,13 @@ static int ptrace_set_debugreg(struct task_struct *child,
>  void ptrace_disable(struct task_struct *child)
>  {
>  	user_disable_single_step(child);
> +#ifdef TIF_SYSCALL_EMU
>  	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
> +#endif

Is TIF_SYSCALL_EMU ever undefined here?
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