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

[Roland McGrath]

> > --- 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?

Yes, it not defined on CONFIG_X86_64.
(That is something to be addressed later on.)


Thanks,
Roland
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