On 04/01, Masami Hiramatsu wrote:
>
> (2014/04/01 4:44), Oleg Nesterov wrote:
> > +
> > +static struct uprobe_xol_ops defaule_xop_ops = {
> > + .pre_xol = default_pre_xol_op,
> > + .post_xol = default_post_xol_op,
>
> If there is no ops->emulate, I think it should not be defined now.
> You can add it when you really need it. :)
Yes, but the next patch will need it. I do not really mind, but if you
do not object I'd prefer to define it in this patch (note that it also
changes skip_sstep() to check ops->emulate even if it has no users yet).
This way the next change will be a little bit simpler.
In the longer term we will (probably) need ops->abort as well, but currently
we can assume handle_riprel_post_xol() in arch_uprobe_abort_xol() can do
nothing wrong even if ->ops != &defaule_xol_ops (one of the reasons for 3/7).
Oleg.
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